19759778

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1423}}^1$

素因数の和:1609

約数の個数: 16

約数和(自身を含む): 30450816

約数和(自身を除く): 10691038

約数列:

[1, 2, 53, 106, 131, 262, 1423, 2846, 6943, 13886, 75419, 150838, 186413, 372826, 9879889, 19759778]

約数ペア:

[(1, 19759778), (2, 9879889), (53, 372826), (106, 186413), (131, 150838), (262, 75419), (1423, 13886), (2846, 6943)]