18807886

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4973}}^1$

素因数の和:5067

約数の個数: 16

約数和(自身を含む): 29605248

約数和(自身を除く): 10797362

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 4973, 9946, 154163, 303353, 308326, 606706, 9403943, 18807886]

約数ペア:

[(1, 18807886), (2, 9403943), (31, 606706), (61, 308326), (62, 303353), (122, 154163), (1891, 9946), (3782, 4973)]