21961360

素因数分解:

$2^4\times 5^1\times {\mathrm{274517}}^1$

素因数の和:274530

約数の個数: 20

約数和(自身を含む): 51060348

約数和(自身を除く): 29098988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274517, 549034, 1098068, 1372585, 2196136, 2745170, 4392272, 5490340, 10980680, 21961360]

約数ペア:

[(1, 21961360), (2, 10980680), (4, 5490340), (5, 4392272), (8, 2745170), (10, 2196136), (16, 1372585), (20, 1098068), (40, 549034), (80, 274517)]