19913377

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1$

素因数の和:2604

約数の個数: 16

約数和(自身を含む): 23408640

約数和(自身を除く): 3495263

約数列:

[1, 11, 23, 31, 253, 341, 713, 2539, 7843, 27929, 58397, 78709, 642367, 865799, 1810307, 19913377]

約数ペア:

[(1, 19913377), (11, 1810307), (23, 865799), (31, 642367), (253, 78709), (341, 58397), (713, 27929), (2539, 7843)]