20279115

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14537}}^1$

素因数の和:14579

約数の個数: 24

約数和(自身を含む): 36286848

約数和(自身を除く): 16007733

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14537, 43611, 72685, 130833, 218055, 450647, 654165, 1351941, 2253235, 4055823, 6759705, 20279115]

約数ペア:

[(1, 20279115), (3, 6759705), (5, 4055823), (9, 2253235), (15, 1351941), (31, 654165), (45, 450647), (93, 218055), (155, 130833), (279, 72685), (465, 43611), (1395, 14537)]