21790017

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1613}}^1$

素因数の和:1717

約数の個数: 24

約数和(自身を含む): 33571200

約数和(自身を除く): 11781183

約数列:

[1, 3, 9, 19, 57, 79, 171, 237, 711, 1501, 1613, 4503, 4839, 13509, 14517, 30647, 91941, 127427, 275823, 382281, 1146843, 2421113, 7263339, 21790017]

約数ペア:

[(1, 21790017), (3, 7263339), (9, 2421113), (19, 1146843), (57, 382281), (79, 275823), (171, 127427), (237, 91941), (711, 30647), (1501, 14517), (1613, 13509), (4503, 4839)]