21435540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:366

約数の個数: 144

約数和(自身を含む): 73084032

約数和(自身を除く): 51648492

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 317, 322, 345, 420, 460, 483, 490, 588, 634, 644, 690, 735, 805, 951, 966, 980, 1127, 1268, 1380, 1470, 1585, 1610, 1902, 1932, 2219, 2254, 2415, 2940, 3170, 3220, 3381, 3804, 4438, 4508, 4755, 4830, 5635, 6340, 6657, 6762, 7291, 8876, 9510, 9660, 11095, 11270, 13314, 13524, 14582, 15533, 16905, 19020, 21873, 22190, 22540, 26628, 29164, 31066, 33285, 33810, 36455, 43746, 44380, 46599, 51037, 62132, 66570, 67620, 72910, 77665, 87492, 93198, 102074, 109365, 133140, 145820, 153111, 155330, 186396, 204148, 218730, 232995, 255185, 306222, 310660, 357259, 437460, 465990, 510370, 612444, 714518, 765555, 931980, 1020740, 1071777, 1429036, 1531110, 1786295, 2143554, 3062220, 3572590, 4287108, 5358885, 7145180, 10717770, 21435540]

約数ペア:

[(1, 21435540), (2, 10717770), (3, 7145180), (4, 5358885), (5, 4287108), (6, 3572590), (7, 3062220), (10, 2143554), (12, 1786295), (14, 1531110), (15, 1429036), (20, 1071777), (21, 1020740), (23, 931980), (28, 765555), (30, 714518), (35, 612444), (42, 510370), (46, 465990), (49, 437460), (60, 357259), (69, 310660), (70, 306222), (84, 255185), (92, 232995), (98, 218730), (105, 204148), (115, 186396), (138, 155330), (140, 153111), (147, 145820), (161, 133140), (196, 109365), (210, 102074), (230, 93198), (245, 87492), (276, 77665), (294, 72910), (317, 67620), (322, 66570), (345, 62132), (420, 51037), (460, 46599), (483, 44380), (490, 43746), (588, 36455), (634, 33810), (644, 33285), (690, 31066), (735, 29164), (805, 26628), (951, 22540), (966, 22190), (980, 21873), (1127, 19020), (1268, 16905), (1380, 15533), (1470, 14582), (1585, 13524), (1610, 13314), (1902, 11270), (1932, 11095), (2219, 9660), (2254, 9510), (2415, 8876), (2940, 7291), (3170, 6762), (3220, 6657), (3381, 6340), (3804, 5635), (4438, 4830), (4508, 4755)]