18760469

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 24950016

約数和(自身を除く): 6189547

約数列:

[1, 7, 13, 17, 67, 91, 119, 181, 221, 469, 871, 1139, 1267, 1547, 2353, 3077, 6097, 7973, 12127, 14807, 16471, 21539, 40001, 84889, 103649, 157651, 206159, 280007, 1103557, 1443113, 2680067, 18760469]

約数ペア:

[(1, 18760469), (7, 2680067), (13, 1443113), (17, 1103557), (67, 280007), (91, 206159), (119, 157651), (181, 103649), (221, 84889), (469, 40001), (871, 21539), (1139, 16471), (1267, 14807), (1547, 12127), (2353, 7973), (3077, 6097)]