19907558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39343}}^1$

素因数の和:39379

約数の個数: 16

約数和(自身を含む): 33993216

約数和(自身を除く): 14085658

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 39343, 78686, 432773, 865546, 904889, 1809778, 9953779, 19907558]

約数ペア:

[(1, 19907558), (2, 9953779), (11, 1809778), (22, 904889), (23, 865546), (46, 432773), (253, 78686), (506, 39343)]