21655366

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1277}}^1$

素因数の和:1479

約数の個数: 16

約数和(自身を含む): 33279120

約数和(自身を除く): 11623754

約数列:

[1, 2, 61, 122, 139, 278, 1277, 2554, 8479, 16958, 77897, 155794, 177503, 355006, 10827683, 21655366]

約数ペア:

[(1, 21655366), (2, 10827683), (61, 355006), (122, 177503), (139, 155794), (278, 77897), (1277, 16958), (2554, 8479)]