21856712

素因数分解:

$2^3\times {\mathrm{911}}^1\times {\mathrm{2999}}^1$

素因数の和:3916

約数の個数: 16

約数和(自身を含む): 41040000

約数和(自身を除く): 19183288

約数列:

[1, 2, 4, 8, 911, 1822, 2999, 3644, 5998, 7288, 11996, 23992, 2732089, 5464178, 10928356, 21856712]

約数ペア:

[(1, 21856712), (2, 10928356), (4, 5464178), (8, 2732089), (911, 23992), (1822, 11996), (2999, 7288), (3644, 5998)]