21222639

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1571}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 32697600

約数和(自身を除く): 11474961

約数列:

[1, 3, 9, 19, 57, 79, 171, 237, 711, 1501, 1571, 4503, 4713, 13509, 14139, 29849, 89547, 124109, 268641, 372327, 1116981, 2358071, 7074213, 21222639]

約数ペア:

[(1, 21222639), (3, 7074213), (9, 2358071), (19, 1116981), (57, 372327), (79, 268641), (171, 124109), (237, 89547), (711, 29849), (1501, 14139), (1571, 13509), (4503, 4713)]