20688993

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{58943}}^1$

素因数の和:58965

約数の個数: 16

約数和(自身を含む): 33008640

約数和(自身を除く): 12319647

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 58943, 176829, 530487, 766259, 1591461, 2298777, 6896331, 20688993]

約数ペア:

[(1, 20688993), (3, 6896331), (9, 2298777), (13, 1591461), (27, 766259), (39, 530487), (117, 176829), (351, 58943)]