21855240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5519}}^1$

素因数の和:5547

約数の個数: 96

約数和(自身を含む): 77500800

約数和(自身を除く): 55645560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5519, 11038, 16557, 22076, 27595, 33114, 44152, 49671, 55190, 60709, 66228, 82785, 99342, 110380, 121418, 132456, 165570, 182127, 198684, 220760, 242836, 248355, 303545, 331140, 364254, 397368, 485672, 496710, 546381, 607090, 662280, 728508, 910635, 993420, 1092762, 1214180, 1457016, 1821270, 1986840, 2185524, 2428360, 2731905, 3642540, 4371048, 5463810, 7285080, 10927620, 21855240]

約数ペア:

[(1, 21855240), (2, 10927620), (3, 7285080), (4, 5463810), (5, 4371048), (6, 3642540), (8, 2731905), (9, 2428360), (10, 2185524), (11, 1986840), (12, 1821270), (15, 1457016), (18, 1214180), (20, 1092762), (22, 993420), (24, 910635), (30, 728508), (33, 662280), (36, 607090), (40, 546381), (44, 496710), (45, 485672), (55, 397368), (60, 364254), (66, 331140), (72, 303545), (88, 248355), (90, 242836), (99, 220760), (110, 198684), (120, 182127), (132, 165570), (165, 132456), (180, 121418), (198, 110380), (220, 99342), (264, 82785), (330, 66228), (360, 60709), (396, 55190), (440, 49671), (495, 44152), (660, 33114), (792, 27595), (990, 22076), (1320, 16557), (1980, 11038), (3960, 5519)]