19862545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4409}}^1$

素因数の和:4484

約数の個数: 16

約数和(自身を含む): 25719120

約数和(自身を除く): 5856575

約数列:

[1, 5, 17, 53, 85, 265, 901, 4409, 4505, 22045, 74953, 233677, 374765, 1168385, 3972509, 19862545]

約数ペア:

[(1, 19862545), (5, 3972509), (17, 1168385), (53, 374765), (85, 233677), (265, 74953), (901, 22045), (4409, 4505)]