18740169

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6329}}^1$

素因数の和:6389

約数の個数: 24

約数和(自身を含む): 31599360

約数和(自身を除く): 12859191

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6329, 18987, 44303, 56961, 132909, 297463, 398727, 892389, 2082241, 2677167, 6246723, 18740169]

約数ペア:

[(1, 18740169), (3, 6246723), (7, 2677167), (9, 2082241), (21, 892389), (47, 398727), (63, 297463), (141, 132909), (329, 56961), (423, 44303), (987, 18987), (2961, 6329)]