25455843

素因数分解:

$3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 44651520

約数和(自身を除く): 19195677

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 147, 189, 213, 271, 441, 497, 639, 813, 1323, 1491, 1897, 1917, 2439, 3479, 4473, 5691, 7317, 10437, 13279, 13419, 17073, 19241, 31311, 39837, 51219, 57723, 93933, 119511, 134687, 173169, 358533, 404061, 519507, 942809, 1212183, 2828427, 3636549, 8485281, 25455843]

約数ペア:

[(1, 25455843), (3, 8485281), (7, 3636549), (9, 2828427), (21, 1212183), (27, 942809), (49, 519507), (63, 404061), (71, 358533), (147, 173169), (189, 134687), (213, 119511), (271, 93933), (441, 57723), (497, 51219), (639, 39837), (813, 31311), (1323, 19241), (1491, 17073), (1897, 13419), (1917, 13279), (2439, 10437), (3479, 7317), (4473, 5691)]