21945300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 144

約数和(自身を含む): 72620352

約数和(自身を除く): 50675052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 25, 26, 30, 34, 39, 50, 51, 52, 60, 65, 68, 75, 78, 85, 100, 102, 130, 150, 156, 170, 195, 204, 221, 255, 260, 300, 325, 331, 340, 390, 425, 442, 510, 650, 662, 663, 780, 850, 884, 975, 993, 1020, 1105, 1275, 1300, 1324, 1326, 1655, 1700, 1950, 1986, 2210, 2550, 2652, 3310, 3315, 3900, 3972, 4303, 4420, 4965, 5100, 5525, 5627, 6620, 6630, 8275, 8606, 9930, 11050, 11254, 12909, 13260, 16550, 16575, 16881, 17212, 19860, 21515, 22100, 22508, 24825, 25818, 28135, 33100, 33150, 33762, 43030, 49650, 51636, 56270, 64545, 66300, 67524, 73151, 84405, 86060, 99300, 107575, 112540, 129090, 140675, 146302, 168810, 215150, 219453, 258180, 281350, 292604, 322725, 337620, 365755, 422025, 430300, 438906, 562700, 645450, 731510, 844050, 877812, 1097265, 1290900, 1463020, 1688100, 1828775, 2194530, 3657550, 4389060, 5486325, 7315100, 10972650, 21945300]

約数ペア:

[(1, 21945300), (2, 10972650), (3, 7315100), (4, 5486325), (5, 4389060), (6, 3657550), (10, 2194530), (12, 1828775), (13, 1688100), (15, 1463020), (17, 1290900), (20, 1097265), (25, 877812), (26, 844050), (30, 731510), (34, 645450), (39, 562700), (50, 438906), (51, 430300), (52, 422025), (60, 365755), (65, 337620), (68, 322725), (75, 292604), (78, 281350), (85, 258180), (100, 219453), (102, 215150), (130, 168810), (150, 146302), (156, 140675), (170, 129090), (195, 112540), (204, 107575), (221, 99300), (255, 86060), (260, 84405), (300, 73151), (325, 67524), (331, 66300), (340, 64545), (390, 56270), (425, 51636), (442, 49650), (510, 43030), (650, 33762), (662, 33150), (663, 33100), (780, 28135), (850, 25818), (884, 24825), (975, 22508), (993, 22100), (1020, 21515), (1105, 19860), (1275, 17212), (1300, 16881), (1324, 16575), (1326, 16550), (1655, 13260), (1700, 12909), (1950, 11254), (1986, 11050), (2210, 9930), (2550, 8606), (2652, 8275), (3310, 6630), (3315, 6620), (3900, 5627), (3972, 5525), (4303, 5100), (4420, 4965)]