17767815

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 31692672

約数和(自身を除く): 13924857

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 163, 169, 195, 215, 489, 507, 559, 645, 815, 845, 1677, 2119, 2445, 2535, 2795, 6357, 7009, 7267, 8385, 10595, 21027, 21801, 27547, 31785, 35045, 36335, 82641, 91117, 105135, 109005, 137735, 273351, 413205, 455585, 1184521, 1366755, 3553563, 5922605, 17767815]

約数ペア:

[(1, 17767815), (3, 5922605), (5, 3553563), (13, 1366755), (15, 1184521), (39, 455585), (43, 413205), (65, 273351), (129, 137735), (163, 109005), (169, 105135), (195, 91117), (215, 82641), (489, 36335), (507, 35045), (559, 31785), (645, 27547), (815, 21801), (845, 21027), (1677, 10595), (2119, 8385), (2445, 7267), (2535, 7009), (2795, 6357)]