21679714

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11821}}^1$

素因数の和:11961

約数の個数: 16

約数和(自身を含む): 37452096

約数和(自身を除く): 15772382

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 11821, 23642, 82747, 165494, 1548551, 3097102, 10839857, 21679714]

約数ペア:

[(1, 21679714), (2, 10839857), (7, 3097102), (14, 1548551), (131, 165494), (262, 82747), (917, 23642), (1834, 11821)]