21300123290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73448701}}^1$

素因数の和:73448737

約数の個数: 16

約数和(自身を含む): 39662299080

約数和(自身を除く): 18362175790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73448701, 146897402, 367243505, 734487010, 2130012329, 4260024658, 10650061645, 21300123290]

約数ペア:

[(1, 21300123290), (2, 10650061645), (5, 4260024658), (10, 2130012329), (29, 734487010), (58, 367243505), (145, 146897402), (290, 73448701)]