18975733

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 22362624

約数和(自身を除く): 3386891

約数列:

[1, 7, 47, 137, 329, 421, 959, 2947, 6439, 19787, 45073, 57677, 138509, 403739, 2710819, 18975733]

約数ペア:

[(1, 18975733), (7, 2710819), (47, 403739), (137, 138509), (329, 57677), (421, 45073), (959, 19787), (2947, 6439)]