20948715

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15017}}^1$

素因数の和:15059

約数の個数: 24

約数和(自身を含む): 37484928

約数和(自身を除く): 16536213

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15017, 45051, 75085, 135153, 225255, 465527, 675765, 1396581, 2327635, 4189743, 6982905, 20948715]

約数ペア:

[(1, 20948715), (3, 6982905), (5, 4189743), (9, 2327635), (15, 1396581), (31, 675765), (45, 465527), (93, 225255), (155, 135153), (279, 75085), (465, 45051), (1395, 15017)]