19485855

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2503}}^1$

素因数の和:2687

約数の個数: 24

約数和(自身を含む): 33984288

約数和(自身を除く): 14498433

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2503, 2595, 7509, 7785, 12515, 22527, 37545, 112635, 433019, 1299057, 2165095, 3897171, 6495285, 19485855]

約数ペア:

[(1, 19485855), (3, 6495285), (5, 3897171), (9, 2165095), (15, 1299057), (45, 433019), (173, 112635), (519, 37545), (865, 22527), (1557, 12515), (2503, 7785), (2595, 7509)]