21450070

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3851}}^1$

素因数の和:4415

約数の個数: 16

約数和(自身を含む): 38689488

約数和(自身を除く): 17239418

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 3851, 5570, 7702, 19255, 38510, 2145007, 4290014, 10725035, 21450070]

約数ペア:

[(1, 21450070), (2, 10725035), (5, 4290014), (10, 2145007), (557, 38510), (1114, 19255), (2785, 7702), (3851, 5570)]