20889891

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2671}}^1$

素因数の和:2767

約数の個数: 24

約数和(自身を含む): 33346560

約数和(自身を除く): 12456669

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 2671, 7821, 8013, 24039, 29381, 88143, 211009, 264429, 633027, 1899081, 2321099, 6963297, 20889891]

約数ペア:

[(1, 20889891), (3, 6963297), (9, 2321099), (11, 1899081), (33, 633027), (79, 264429), (99, 211009), (237, 88143), (711, 29381), (869, 24039), (2607, 8013), (2671, 7821)]