21193030

素因数分解:

$2^1\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1657}}^1$

素因数の和:2943

約数の個数: 16

約数和(自身を含む): 38200320

約数和(自身を除く): 17007290

約数列:

[1, 2, 5, 10, 1279, 1657, 2558, 3314, 6395, 8285, 12790, 16570, 2119303, 4238606, 10596515, 21193030]

約数ペア:

[(1, 21193030), (2, 10596515), (5, 4238606), (10, 2119303), (1279, 16570), (1657, 12790), (2558, 8285), (3314, 6395)]