21453896

素因数分解:

$2^3\times {\mathrm{541}}^1\times {\mathrm{4957}}^1$

素因数の和:5504

約数の個数: 16

約数和(自身を含む): 40308540

約数和(自身を除く): 18854644

約数列:

[1, 2, 4, 8, 541, 1082, 2164, 4328, 4957, 9914, 19828, 39656, 2681737, 5363474, 10726948, 21453896]

約数ペア:

[(1, 21453896), (2, 10726948), (4, 5363474), (8, 2681737), (541, 39656), (1082, 19828), (2164, 9914), (4328, 4957)]