28488159

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 50041440

約数和(自身を除く): 21553281

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 353, 427, 441, 549, 1059, 1281, 1323, 1647, 2471, 2989, 3177, 3843, 7413, 8967, 9531, 11529, 17297, 21533, 22239, 26901, 51891, 64599, 66717, 80703, 150731, 155673, 193797, 452193, 467019, 581391, 1055117, 1356579, 3165351, 4069737, 9496053, 28488159]

約数ペア:

[(1, 28488159), (3, 9496053), (7, 4069737), (9, 3165351), (21, 1356579), (27, 1055117), (49, 581391), (61, 467019), (63, 452193), (147, 193797), (183, 155673), (189, 150731), (353, 80703), (427, 66717), (441, 64599), (549, 51891), (1059, 26901), (1281, 22239), (1323, 21533), (1647, 17297), (2471, 11529), (2989, 9531), (3177, 8967), (3843, 7413)]