21394430

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30133}}^1$

素因数の和:30211

約数の個数: 16

約数和(自身を含む): 39053664

約数和(自身を除く): 17659234

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 30133, 60266, 150665, 301330, 2139443, 4278886, 10697215, 21394430]

約数ペア:

[(1, 21394430), (2, 10697215), (5, 4278886), (10, 2139443), (71, 301330), (142, 150665), (355, 60266), (710, 30133)]