21221138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7069}}^1$

素因数の和:7169

約数の個数: 16

約数和(自身を含む): 33936000

約数和(自身を除く): 12714862

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 7069, 14138, 134311, 268622, 558451, 1116902, 10610569, 21221138]

約数ペア:

[(1, 21221138), (2, 10610569), (19, 1116902), (38, 558451), (79, 268622), (158, 134311), (1501, 14138), (3002, 7069)]