201891285

素因数分解:

$3^4\times 5^1\times {\mathrm{498497}}^1$

素因数の和:498514

約数の個数: 20

約数和(自身を含む): 361909548

約数和(自身を除く): 160018263

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 498497, 1495491, 2492485, 4486473, 7477455, 13459419, 22432365, 40378257, 67297095, 201891285]

約数ペア:

[(1, 201891285), (3, 67297095), (5, 40378257), (9, 22432365), (15, 13459419), (27, 7477455), (45, 4486473), (81, 2492485), (135, 1495491), (405, 498497)]