21122270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3457}}^1$

素因数の和:3524

約数の個数: 32

約数和(自身を含む): 41827968

約数和(自身を除く): 20705698

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3457, 6110, 6914, 17285, 34570, 44941, 89882, 162479, 224705, 324958, 449410, 812395, 1624790, 2112227, 4224454, 10561135, 21122270]

約数ペア:

[(1, 21122270), (2, 10561135), (5, 4224454), (10, 2112227), (13, 1624790), (26, 812395), (47, 449410), (65, 324958), (94, 224705), (130, 162479), (235, 89882), (470, 44941), (611, 34570), (1222, 17285), (3055, 6914), (3457, 6110)]