21957363

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{151}}^2$

素因数の和:415

約数の個数: 18

約数和(自身を含む): 32226012

約数和(自身を除く): 10268649

約数列:

[1, 3, 9, 107, 151, 321, 453, 963, 1359, 16157, 22801, 48471, 68403, 145413, 205209, 2439707, 7319121, 21957363]

約数ペア:

[(1, 21957363), (3, 7319121), (9, 2439707), (107, 205209), (151, 145413), (321, 68403), (453, 48471), (963, 22801), (1359, 16157)]