17990371

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 21150720

約数和(自身を除く): 3160349

約数列:

[1, 7, 67, 89, 431, 469, 623, 3017, 5963, 28877, 38359, 41741, 202139, 268513, 2570053, 17990371]

約数ペア:

[(1, 17990371), (7, 2570053), (67, 268513), (89, 202139), (431, 41741), (469, 38359), (623, 28877), (3017, 5963)]