21000908030

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{48839321}}^1$

素因数の和:48839371

約数の個数: 16

約数和(自身を含む): 38680743024

約数和(自身を除く): 17679834994

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 48839321, 97678642, 244196605, 488393210, 2100090803, 4200181606, 10500454015, 21000908030]

約数ペア:

[(1, 21000908030), (2, 10500454015), (5, 4200181606), (10, 2100090803), (43, 488393210), (86, 244196605), (215, 97678642), (430, 48839321)]