18910129

素因数分解:

$7^2\times {\mathrm{101}}^1\times {\mathrm{3821}}^1$

素因数の和:3936

約数の個数: 12

約数和(自身を含む): 22221108

約数和(自身を除く): 3310979

約数列:

[1, 7, 49, 101, 707, 3821, 4949, 26747, 187229, 385921, 2701447, 18910129]

約数ペア:

[(1, 18910129), (7, 2701447), (49, 385921), (101, 187229), (707, 26747), (3821, 4949)]