28438767

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1093}}^1$

素因数の和:1172

約数の個数: 36

約数和(自身を含む): 48639240

約数和(自身を除く): 20200473

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 1093, 1239, 2891, 3279, 3717, 7651, 8673, 9837, 22953, 26019, 53557, 64487, 68859, 160671, 193461, 451409, 482013, 580383, 1354227, 3159863, 4062681, 9479589, 28438767]

約数ペア:

[(1, 28438767), (3, 9479589), (7, 4062681), (9, 3159863), (21, 1354227), (49, 580383), (59, 482013), (63, 451409), (147, 193461), (177, 160671), (413, 68859), (441, 64487), (531, 53557), (1093, 26019), (1239, 22953), (2891, 9837), (3279, 8673), (3717, 7651)]