18580257

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 28156128

約数和(自身を除く): 9575871

約数列:

[1, 3, 9, 41, 43, 123, 129, 369, 387, 1171, 1763, 3513, 5289, 10539, 15867, 48011, 50353, 144033, 151059, 432099, 453177, 2064473, 6193419, 18580257]

約数ペア:

[(1, 18580257), (3, 6193419), (9, 2064473), (41, 453177), (43, 432099), (123, 151059), (129, 144033), (369, 50353), (387, 48011), (1171, 15867), (1763, 10539), (3513, 5289)]