19656845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17789}}^1$

素因数の和:17824

約数の個数: 16

約数和(自身を含む): 26898480

約数和(自身を除く): 7241635

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 17789, 88945, 231257, 302413, 1156285, 1512065, 3931369, 19656845]

約数ペア:

[(1, 19656845), (5, 3931369), (13, 1512065), (17, 1156285), (65, 302413), (85, 231257), (221, 88945), (1105, 17789)]