21121968

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1699}}^1$

素因数の和:1754

約数の個数: 80

約数和(自身を含む): 64083200

約数和(自身を除く): 42961232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1699, 1776, 2072, 3108, 3398, 4144, 5097, 6216, 6796, 10194, 11893, 12432, 13592, 20388, 23786, 27184, 35679, 40776, 47572, 62863, 71358, 81552, 95144, 125726, 142716, 188589, 190288, 251452, 285432, 377178, 440041, 502904, 570864, 754356, 880082, 1005808, 1320123, 1508712, 1760164, 2640246, 3017424, 3520328, 5280492, 7040656, 10560984, 21121968]

約数ペア:

[(1, 21121968), (2, 10560984), (3, 7040656), (4, 5280492), (6, 3520328), (7, 3017424), (8, 2640246), (12, 1760164), (14, 1508712), (16, 1320123), (21, 1005808), (24, 880082), (28, 754356), (37, 570864), (42, 502904), (48, 440041), (56, 377178), (74, 285432), (84, 251452), (111, 190288), (112, 188589), (148, 142716), (168, 125726), (222, 95144), (259, 81552), (296, 71358), (336, 62863), (444, 47572), (518, 40776), (592, 35679), (777, 27184), (888, 23786), (1036, 20388), (1554, 13592), (1699, 12432), (1776, 11893), (2072, 10194), (3108, 6796), (3398, 6216), (4144, 5097)]