21125864

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33427}}^1$

素因数の和:33512

約数の個数: 16

約数和(自身を含む): 40113600

約数和(自身を除く): 18987736

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33427, 66854, 133708, 267416, 2640733, 5281466, 10562932, 21125864]

約数ペア:

[(1, 21125864), (2, 10562932), (4, 5281466), (8, 2640733), (79, 267416), (158, 133708), (316, 66854), (632, 33427)]