25404957

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 41184000

約数和(自身を除く): 15779043

約数列:

[1, 3, 9, 19, 29, 47, 57, 87, 109, 141, 171, 261, 327, 423, 551, 893, 981, 1363, 1653, 2071, 2679, 3161, 4089, 4959, 5123, 6213, 8037, 9483, 12267, 15369, 18639, 25897, 28449, 46107, 60059, 77691, 97337, 148567, 180177, 233073, 292011, 445701, 540531, 876033, 1337103, 2822773, 8468319, 25404957]

約数ペア:

[(1, 25404957), (3, 8468319), (9, 2822773), (19, 1337103), (29, 876033), (47, 540531), (57, 445701), (87, 292011), (109, 233073), (141, 180177), (171, 148567), (261, 97337), (327, 77691), (423, 60059), (551, 46107), (893, 28449), (981, 25897), (1363, 18639), (1653, 15369), (2071, 12267), (2679, 9483), (3161, 8037), (4089, 6213), (4959, 5123)]