2019946815

素因数分解:

$3^4\times 5^1\times {\mathrm{4987523}}^1$

素因数の和:4987540

約数の個数: 20

約数和(自身を含む): 3620942424

約数和(自身を除く): 1600995609

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4987523, 14962569, 24937615, 44887707, 74812845, 134663121, 224438535, 403989363, 673315605, 2019946815]

約数ペア:

[(1, 2019946815), (3, 673315605), (5, 403989363), (9, 224438535), (15, 134663121), (27, 74812845), (45, 44887707), (81, 24937615), (135, 14962569), (405, 4987523)]