18033813

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 31901760

約数和(自身を除く): 13867947

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 301, 317, 387, 441, 903, 951, 1161, 1323, 2107, 2219, 2709, 2853, 6321, 6657, 8127, 8559, 13631, 15533, 18963, 19971, 40893, 46599, 56889, 59913, 95417, 122679, 139797, 286251, 368037, 419391, 667919, 858753, 2003757, 2576259, 6011271, 18033813]

約数ペア:

[(1, 18033813), (3, 6011271), (7, 2576259), (9, 2003757), (21, 858753), (27, 667919), (43, 419391), (49, 368037), (63, 286251), (129, 139797), (147, 122679), (189, 95417), (301, 59913), (317, 56889), (387, 46599), (441, 40893), (903, 19971), (951, 18963), (1161, 15533), (1323, 13631), (2107, 8559), (2219, 8127), (2709, 6657), (2853, 6321)]