28511973

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 51327360

約数和(自身を除く): 22815387

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 621, 937, 1127, 1323, 1449, 2811, 3381, 4347, 6559, 8433, 10143, 19677, 21551, 25299, 30429, 45913, 59031, 64653, 137739, 150857, 177093, 193959, 413217, 452571, 581877, 1055999, 1239651, 1357713, 3167997, 4073139, 9503991, 28511973]

約数ペア:

[(1, 28511973), (3, 9503991), (7, 4073139), (9, 3167997), (21, 1357713), (23, 1239651), (27, 1055999), (49, 581877), (63, 452571), (69, 413217), (147, 193959), (161, 177093), (189, 150857), (207, 137739), (441, 64653), (483, 59031), (621, 45913), (937, 30429), (1127, 25299), (1323, 21551), (1449, 19677), (2811, 10143), (3381, 8433), (4347, 6559)]