19671730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^2$

素因数の和:798

約数の個数: 24

約数和(自身を含む): 38231172

約数和(自身を除く): 18559442

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 778, 1945, 3890, 5057, 10114, 25285, 50570, 151321, 302642, 756605, 1513210, 1967173, 3934346, 9835865, 19671730]

約数ペア:

[(1, 19671730), (2, 9835865), (5, 3934346), (10, 1967173), (13, 1513210), (26, 756605), (65, 302642), (130, 151321), (389, 50570), (778, 25285), (1945, 10114), (3890, 5057)]