21615398

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90821}}^1$

素因数の和:90847

約数の個数: 16

約数和(自身を含む): 39235104

約数和(自身を除く): 17619706

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90821, 181642, 635747, 1271494, 1543957, 3087914, 10807699, 21615398]

約数ペア:

[(1, 21615398), (2, 10807699), (7, 3087914), (14, 1543957), (17, 1271494), (34, 635747), (119, 181642), (238, 90821)]