21234568

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33599}}^1$

素因数の和:33684

約数の個数: 16

約数和(自身を含む): 40320000

約数和(自身を除く): 19085432

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33599, 67198, 134396, 268792, 2654321, 5308642, 10617284, 21234568]

約数ペア:

[(1, 21234568), (2, 10617284), (4, 5308642), (8, 2654321), (79, 268792), (158, 134396), (316, 67198), (632, 33599)]