661185

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{2099}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 1310400

約数和(自身を除く): 649215

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 2099, 6297, 10495, 14693, 18891, 31485, 44079, 73465, 94455, 132237, 220395, 661185]

約数ペア:

[(1, 661185), (3, 220395), (5, 132237), (7, 94455), (9, 73465), (15, 44079), (21, 31485), (35, 18891), (45, 14693), (63, 10495), (105, 6297), (315, 2099)]