21079017

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 32198400

約数和(自身を除く): 11119383

約数列:

[1, 3, 9, 23, 69, 79, 207, 237, 711, 1289, 1817, 3867, 5451, 11601, 16353, 29647, 88941, 101831, 266823, 305493, 916479, 2342113, 7026339, 21079017]

約数ペア:

[(1, 21079017), (3, 7026339), (9, 2342113), (23, 916479), (69, 305493), (79, 266823), (207, 101831), (237, 88941), (711, 29647), (1289, 16353), (1817, 11601), (3867, 5451)]