19991044

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 36324288

約数和(自身を除く): 16333244

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1637, 3053, 3274, 6106, 6548, 12212, 70391, 116227, 140782, 232454, 281564, 464908, 4997761, 9995522, 19991044]

約数ペア:

[(1, 19991044), (2, 9995522), (4, 4997761), (43, 464908), (71, 281564), (86, 232454), (142, 140782), (172, 116227), (284, 70391), (1637, 12212), (3053, 6548), (3274, 6106)]