20197918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7127}}^1$

素因数の和:7251

約数の個数: 16

約数和(自身を含む): 32931360

約数和(自身を除く): 12733442

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7127, 14254, 92651, 185302, 776843, 1553686, 10098959, 20197918]

約数ペア:

[(1, 20197918), (2, 10098959), (13, 1553686), (26, 776843), (109, 185302), (218, 92651), (1417, 14254), (2834, 7127)]