291210087

素因数分解:

$3^1\times 7^4\times {\mathrm{40429}}^1$

素因数の和:40460

約数の個数: 20

約数和(自身を含む): 452977720

約数和(自身を除く): 161767633

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 40429, 121287, 283003, 849009, 1981021, 5943063, 13867147, 41601441, 97070029, 291210087]

約数ペア:

[(1, 291210087), (3, 97070029), (7, 41601441), (21, 13867147), (49, 5943063), (147, 1981021), (343, 849009), (1029, 283003), (2401, 121287), (7203, 40429)]