21349144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156979}}^1$

素因数の和:157002

約数の個数: 16

約数和(自身を含む): 42384600

約数和(自身を除く): 21035456

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156979, 313958, 627916, 1255832, 2668643, 5337286, 10674572, 21349144]

約数ペア:

[(1, 21349144), (2, 10674572), (4, 5337286), (8, 2668643), (17, 1255832), (34, 627916), (68, 313958), (136, 156979)]