21653580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 51503028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 23, 26, 30, 34, 39, 46, 51, 52, 60, 65, 68, 69, 71, 78, 85, 92, 102, 115, 130, 138, 142, 156, 170, 195, 204, 213, 221, 230, 255, 260, 276, 284, 299, 340, 345, 355, 390, 391, 426, 442, 460, 510, 598, 663, 690, 710, 780, 782, 852, 884, 897, 923, 1020, 1065, 1105, 1173, 1196, 1207, 1326, 1380, 1420, 1495, 1564, 1633, 1794, 1846, 1955, 2130, 2210, 2346, 2414, 2652, 2769, 2990, 3266, 3315, 3588, 3621, 3692, 3910, 4260, 4420, 4485, 4615, 4692, 4828, 4899, 5083, 5538, 5865, 5980, 6035, 6532, 6630, 7242, 7820, 8165, 8970, 9230, 9798, 10166, 11076, 11730, 12070, 13260, 13845, 14484, 15249, 15691, 16330, 17940, 18105, 18460, 19596, 20332, 21229, 23460, 24140, 24495, 25415, 27690, 27761, 30498, 31382, 32660, 36210, 42458, 47073, 48990, 50830, 55380, 55522, 60996, 62764, 63687, 72420, 76245, 78455, 83283, 84916, 94146, 97980, 101660, 106145, 111044, 127374, 138805, 152490, 156910, 166566, 188292, 212290, 235365, 254748, 277610, 304980, 313820, 318435, 333132, 360893, 416415, 424580, 470730, 555220, 636870, 721786, 832830, 941460, 1082679, 1273740, 1443572, 1665660, 1804465, 2165358, 3608930, 4330716, 5413395, 7217860, 10826790, 21653580]

約数ペア:

[(1, 21653580), (2, 10826790), (3, 7217860), (4, 5413395), (5, 4330716), (6, 3608930), (10, 2165358), (12, 1804465), (13, 1665660), (15, 1443572), (17, 1273740), (20, 1082679), (23, 941460), (26, 832830), (30, 721786), (34, 636870), (39, 555220), (46, 470730), (51, 424580), (52, 416415), (60, 360893), (65, 333132), (68, 318435), (69, 313820), (71, 304980), (78, 277610), (85, 254748), (92, 235365), (102, 212290), (115, 188292), (130, 166566), (138, 156910), (142, 152490), (156, 138805), (170, 127374), (195, 111044), (204, 106145), (213, 101660), (221, 97980), (230, 94146), (255, 84916), (260, 83283), (276, 78455), (284, 76245), (299, 72420), (340, 63687), (345, 62764), (355, 60996), (390, 55522), (391, 55380), (426, 50830), (442, 48990), (460, 47073), (510, 42458), (598, 36210), (663, 32660), (690, 31382), (710, 30498), (780, 27761), (782, 27690), (852, 25415), (884, 24495), (897, 24140), (923, 23460), (1020, 21229), (1065, 20332), (1105, 19596), (1173, 18460), (1196, 18105), (1207, 17940), (1326, 16330), (1380, 15691), (1420, 15249), (1495, 14484), (1564, 13845), (1633, 13260), (1794, 12070), (1846, 11730), (1955, 11076), (2130, 10166), (2210, 9798), (2346, 9230), (2414, 8970), (2652, 8165), (2769, 7820), (2990, 7242), (3266, 6630), (3315, 6532), (3588, 6035), (3621, 5980), (3692, 5865), (3910, 5538), (4260, 5083), (4420, 4899), (4485, 4828), (4615, 4692)]