19945165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{509}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 25446960

約数和(自身を除く): 5501795

約数列:

[1, 5, 17, 85, 461, 509, 2305, 2545, 7837, 8653, 39185, 43265, 234649, 1173245, 3989033, 19945165]

約数ペア:

[(1, 19945165), (5, 3989033), (17, 1173245), (85, 234649), (461, 43265), (509, 39185), (2305, 8653), (2545, 7837)]