18739231

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 21897216

約数和(自身を除く): 3157985

約数列:

[1, 7, 107, 127, 197, 749, 889, 1379, 13589, 21079, 25019, 95123, 147553, 175133, 2677033, 18739231]

約数ペア:

[(1, 18739231), (7, 2677033), (107, 175133), (127, 147553), (197, 95123), (749, 25019), (889, 21079), (1379, 13589)]