17581347

素因数分解:

$3^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 30834720

約数和(自身を除く): 13253373

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 97, 137, 147, 189, 291, 411, 441, 679, 873, 959, 1233, 1323, 2037, 2619, 2877, 3699, 4753, 6111, 6713, 8631, 13289, 14259, 18333, 20139, 25893, 39867, 42777, 60417, 93023, 119601, 128331, 181251, 279069, 358803, 651161, 837207, 1953483, 2511621, 5860449, 17581347]

約数ペア:

[(1, 17581347), (3, 5860449), (7, 2511621), (9, 1953483), (21, 837207), (27, 651161), (49, 358803), (63, 279069), (97, 181251), (137, 128331), (147, 119601), (189, 93023), (291, 60417), (411, 42777), (441, 39867), (679, 25893), (873, 20139), (959, 18333), (1233, 14259), (1323, 13289), (2037, 8631), (2619, 6713), (2877, 6111), (3699, 4753)]