18729765

素因数分解:

$3^3\times 5^1\times {\mathrm{138739}}^1$

素因数の和:138753

約数の個数: 16

約数和(自身を含む): 33297600

約数和(自身を除く): 14567835

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 138739, 416217, 693695, 1248651, 2081085, 3745953, 6243255, 18729765]

約数ペア:

[(1, 18729765), (3, 6243255), (5, 3745953), (9, 2081085), (15, 1248651), (27, 693695), (45, 416217), (135, 138739)]