215689313

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1\times {\mathrm{1021}}^1$

素因数の和:1424

約数の個数: 16

約数和(自身を含む): 249989376

約数和(自身を除く): 34300063

約数列:

[1, 7, 103, 293, 721, 1021, 2051, 7147, 30179, 105163, 211253, 299153, 736141, 2094071, 30812759, 215689313]

約数ペア:

[(1, 215689313), (7, 30812759), (103, 2094071), (293, 736141), (721, 299153), (1021, 211253), (2051, 105163), (7147, 30179)]