21960921

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{2341}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 30352320

約数和(自身を除く): 8391399

約数列:

[1, 3, 53, 59, 159, 177, 2341, 3127, 7023, 9381, 124073, 138119, 372219, 414357, 7320307, 21960921]

約数ペア:

[(1, 21960921), (3, 7320307), (53, 414357), (59, 372219), (159, 138119), (177, 124073), (2341, 9381), (3127, 7023)]