21208967

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:922

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2922553

約数列:

[1, 13, 23, 89, 299, 797, 1157, 2047, 10361, 18331, 26611, 70933, 238303, 922129, 1631459, 21208967]

約数ペア:

[(1, 21208967), (13, 1631459), (23, 922129), (89, 238303), (299, 70933), (797, 26611), (1157, 18331), (2047, 10361)]