19989502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{2837}}^1$

素因数の和:3123

約数の個数: 16

約数和(自身を含む): 32421312

約数和(自身を除く): 12431810

約数列:

[1, 2, 13, 26, 271, 542, 2837, 3523, 5674, 7046, 36881, 73762, 768827, 1537654, 9994751, 19989502]

約数ペア:

[(1, 19989502), (2, 9994751), (13, 1537654), (26, 768827), (271, 73762), (542, 36881), (2837, 7046), (3523, 5674)]