21290147290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73414301}}^1$

素因数の和:73414337

約数の個数: 16

約数和(自身を含む): 39643723080

約数和(自身を除く): 18353575790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73414301, 146828602, 367071505, 734143010, 2129014729, 4258029458, 10645073645, 21290147290]

約数ペア:

[(1, 21290147290), (2, 10645073645), (5, 4258029458), (10, 2129014729), (29, 734143010), (58, 367071505), (145, 146828602), (290, 73414301)]