20268855

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4373}}^1$

素因数の和:4487

約数の個数: 24

約数和(自身を含む): 35481888

約数和(自身を除く): 15213033

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4373, 4635, 13119, 21865, 39357, 65595, 196785, 450419, 1351257, 2252095, 4053771, 6756285, 20268855]

約数ペア:

[(1, 20268855), (3, 6756285), (5, 4053771), (9, 2252095), (15, 1351257), (45, 450419), (103, 196785), (309, 65595), (515, 39357), (927, 21865), (1545, 13119), (4373, 4635)]