18856604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 38229408

約数和(自身を除く): 19372804

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 83, 166, 221, 257, 332, 442, 514, 884, 1028, 1079, 1411, 2158, 2822, 3341, 4316, 4369, 5644, 6682, 8738, 13364, 17476, 18343, 21331, 36686, 42662, 56797, 73372, 85324, 113594, 227188, 277303, 362627, 554606, 725254, 1109212, 1450508, 4714151, 9428302, 18856604]

約数ペア:

[(1, 18856604), (2, 9428302), (4, 4714151), (13, 1450508), (17, 1109212), (26, 725254), (34, 554606), (52, 362627), (68, 277303), (83, 227188), (166, 113594), (221, 85324), (257, 73372), (332, 56797), (442, 42662), (514, 36686), (884, 21331), (1028, 18343), (1079, 17476), (1411, 13364), (2158, 8738), (2822, 6682), (3341, 5644), (4316, 4369)]