18997358

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2339}}^1$

素因数の和:2503

約数の個数: 16

約数和(自身を含む): 29652480

約数和(自身を除く): 10655122

約数列:

[1, 2, 31, 62, 131, 262, 2339, 4061, 4678, 8122, 72509, 145018, 306409, 612818, 9498679, 18997358]

約数ペア:

[(1, 18997358), (2, 9498679), (31, 612818), (62, 306409), (131, 145018), (262, 72509), (2339, 8122), (4061, 4678)]