21411710

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7901}}^1$

素因数の和:8179

約数の個数: 16

約数和(自身を含む): 38688192

約数和(自身を除く): 17276482

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7901, 15802, 39505, 79010, 2141171, 4282342, 10705855, 21411710]

約数ペア:

[(1, 21411710), (2, 10705855), (5, 4282342), (10, 2141171), (271, 79010), (542, 39505), (1355, 15802), (2710, 7901)]