21903670

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70657}}^1$

素因数の和:70695

約数の個数: 16

約数和(自身を含む): 40699008

約数和(自身を除く): 18795338

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70657, 141314, 353285, 706570, 2190367, 4380734, 10951835, 21903670]

約数ペア:

[(1, 21903670), (2, 10951835), (5, 4380734), (10, 2190367), (31, 706570), (62, 353285), (155, 141314), (310, 70657)]