21586788

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:122

約数の個数: 108

約数和(自身を含む): 60872448

約数和(自身を除く): 39285660

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 29, 31, 36, 46, 58, 62, 69, 87, 92, 93, 116, 124, 138, 174, 186, 207, 261, 276, 279, 348, 372, 414, 522, 558, 667, 713, 828, 841, 899, 1044, 1116, 1334, 1426, 1682, 1798, 2001, 2139, 2523, 2668, 2697, 2852, 3364, 3596, 4002, 4278, 5046, 5394, 6003, 6417, 7569, 8004, 8091, 8556, 10092, 10788, 12006, 12834, 15138, 16182, 19343, 20677, 24012, 25668, 26071, 30276, 32364, 38686, 41354, 52142, 58029, 62031, 77372, 78213, 82708, 104284, 116058, 124062, 156426, 174087, 186093, 232116, 234639, 248124, 312852, 348174, 372186, 469278, 599633, 696348, 744372, 938556, 1199266, 1798899, 2398532, 3597798, 5396697, 7195596, 10793394, 21586788]

約数ペア:

[(1, 21586788), (2, 10793394), (3, 7195596), (4, 5396697), (6, 3597798), (9, 2398532), (12, 1798899), (18, 1199266), (23, 938556), (29, 744372), (31, 696348), (36, 599633), (46, 469278), (58, 372186), (62, 348174), (69, 312852), (87, 248124), (92, 234639), (93, 232116), (116, 186093), (124, 174087), (138, 156426), (174, 124062), (186, 116058), (207, 104284), (261, 82708), (276, 78213), (279, 77372), (348, 62031), (372, 58029), (414, 52142), (522, 41354), (558, 38686), (667, 32364), (713, 30276), (828, 26071), (841, 25668), (899, 24012), (1044, 20677), (1116, 19343), (1334, 16182), (1426, 15138), (1682, 12834), (1798, 12006), (2001, 10788), (2139, 10092), (2523, 8556), (2668, 8091), (2697, 8004), (2852, 7569), (3364, 6417), (3596, 6003), (4002, 5394), (4278, 5046)]