20373915

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13187}}^1$

素因数の和:13298

約数の個数: 16

約数和(自身を含む): 32917248

約数和(自身を除く): 12543333

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13187, 39561, 65935, 197805, 1358261, 4074783, 6791305, 20373915]

約数ペア:

[(1, 20373915), (3, 6791305), (5, 4074783), (15, 1358261), (103, 197805), (309, 65935), (515, 39561), (1545, 13187)]