19942881273

素因数分解:

$3^2\times 7^4\times {\mathrm{922897}}^1$

素因数の和:922931

約数の個数: 30

約数和(自身を含む): 33605484874

約数和(自身を除く): 13662603601

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 2401, 3087, 7203, 21609, 922897, 2768691, 6460279, 8306073, 19380837, 45221953, 58142511, 135665859, 316553671, 406997577, 949661013, 2215875697, 2848983039, 6647627091, 19942881273]

約数ペア:

[(1, 19942881273), (3, 6647627091), (7, 2848983039), (9, 2215875697), (21, 949661013), (49, 406997577), (63, 316553671), (147, 135665859), (343, 58142511), (441, 45221953), (1029, 19380837), (2401, 8306073), (3087, 6460279), (7203, 2768691), (21609, 922897)]