21007832

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 23228968

約数列:

[1, 2, 4, 8, 23, 29, 31, 46, 58, 62, 92, 116, 124, 127, 184, 232, 248, 254, 508, 667, 713, 899, 1016, 1334, 1426, 1798, 2668, 2852, 2921, 3596, 3683, 3937, 5336, 5704, 5842, 7192, 7366, 7874, 11684, 14732, 15748, 20677, 23368, 29464, 31496, 41354, 82708, 84709, 90551, 114173, 165416, 169418, 181102, 228346, 338836, 362204, 456692, 677672, 724408, 913384, 2625979, 5251958, 10503916, 21007832]

約数ペア:

[(1, 21007832), (2, 10503916), (4, 5251958), (8, 2625979), (23, 913384), (29, 724408), (31, 677672), (46, 456692), (58, 362204), (62, 338836), (92, 228346), (116, 181102), (124, 169418), (127, 165416), (184, 114173), (232, 90551), (248, 84709), (254, 82708), (508, 41354), (667, 31496), (713, 29464), (899, 23368), (1016, 20677), (1334, 15748), (1426, 14732), (1798, 11684), (2668, 7874), (2852, 7366), (2921, 7192), (3596, 5842), (3683, 5704), (3937, 5336)]