20945565

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4519}}^1$

素因数の和:4633

約数の個数: 24

約数和(自身を含む): 36666240

約数和(自身を除く): 15720675

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4519, 4635, 13557, 22595, 40671, 67785, 203355, 465457, 1396371, 2327285, 4189113, 6981855, 20945565]

約数ペア:

[(1, 20945565), (3, 6981855), (5, 4189113), (9, 2327285), (15, 1396371), (45, 465457), (103, 203355), (309, 67785), (515, 40671), (927, 22595), (1545, 13557), (4519, 4635)]