21067539987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{656371}}^1$

素因数の和:657210

約数の個数: 16

約数和(自身を含む): 30287629568

約数和(自身を除く): 9220089581

約数列:

[1, 3, 13, 39, 823, 2469, 10699, 32097, 656371, 1969113, 8532823, 25598469, 540193333, 1620579999, 7022513329, 21067539987]

約数ペア:

[(1, 21067539987), (3, 7022513329), (13, 1620579999), (39, 540193333), (823, 25598469), (2469, 8532823), (10699, 1969113), (32097, 656371)]