21349010

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15359}}^1$

素因数の和:15505

約数の個数: 16

約数和(自身を含む): 38707200

約数和(自身を除く): 17358190

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 15359, 30718, 76795, 153590, 2134901, 4269802, 10674505, 21349010]

約数ペア:

[(1, 21349010), (2, 10674505), (5, 4269802), (10, 2134901), (139, 153590), (278, 76795), (695, 30718), (1390, 15359)]