21239430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{707981}}^1$

素因数の和:707991

約数の個数: 16

約数和(自身を含む): 50974704

約数和(自身を除く): 29735274

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 707981, 1415962, 2123943, 3539905, 4247886, 7079810, 10619715, 21239430]

約数ペア:

[(1, 21239430), (2, 10619715), (3, 7079810), (5, 4247886), (6, 3539905), (10, 2123943), (15, 1415962), (30, 707981)]