18673263

素因数分解:

$3^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 32947200

約数和(自身を除く): 14273937

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 263, 343, 441, 483, 789, 1029, 1127, 1449, 1841, 2367, 3087, 3381, 5523, 6049, 7889, 10143, 12887, 16569, 18147, 23667, 38661, 42343, 54441, 71001, 90209, 115983, 127029, 270627, 296401, 381087, 811881, 889203, 2074807, 2667609, 6224421, 18673263]

約数ペア:

[(1, 18673263), (3, 6224421), (7, 2667609), (9, 2074807), (21, 889203), (23, 811881), (49, 381087), (63, 296401), (69, 270627), (147, 127029), (161, 115983), (207, 90209), (263, 71001), (343, 54441), (441, 42343), (483, 38661), (789, 23667), (1029, 18147), (1127, 16569), (1449, 12887), (1841, 10143), (2367, 7889), (3087, 6049), (3381, 5523)]