21142217

素因数分解:

${\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 22579200

約数和(自身を除く): 1436983

約数列:

[1, 31, 79, 89, 97, 2449, 2759, 3007, 7031, 7663, 8633, 217961, 237553, 267623, 682007, 21142217]

約数ペア:

[(1, 21142217), (31, 682007), (79, 267623), (89, 237553), (97, 217961), (2449, 8633), (2759, 7663), (3007, 7031)]