21685130

素因数分解:

$2^1\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1931}}^1$

素因数の和:3061

約数の個数: 16

約数和(自身を含む): 39088224

約数和(自身を除く): 17403094

約数列:

[1, 2, 5, 10, 1123, 1931, 2246, 3862, 5615, 9655, 11230, 19310, 2168513, 4337026, 10842565, 21685130]

約数ペア:

[(1, 21685130), (2, 10842565), (5, 4337026), (10, 2168513), (1123, 19310), (1931, 11230), (2246, 9655), (3862, 5615)]