28686567

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 48487680

約数和(自身を除く): 19801113

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 137, 169, 177, 273, 411, 413, 507, 767, 959, 1183, 1239, 1781, 2301, 2877, 3549, 5343, 5369, 8083, 9971, 12467, 16107, 23153, 24249, 29913, 37401, 56581, 69459, 69797, 105079, 162071, 169743, 209391, 315237, 486213, 735553, 1366027, 2206659, 4098081, 9562189, 28686567]

約数ペア:

[(1, 28686567), (3, 9562189), (7, 4098081), (13, 2206659), (21, 1366027), (39, 735553), (59, 486213), (91, 315237), (137, 209391), (169, 169743), (177, 162071), (273, 105079), (411, 69797), (413, 69459), (507, 56581), (767, 37401), (959, 29913), (1183, 24249), (1239, 23153), (1781, 16107), (2301, 12467), (2877, 9971), (3549, 8083), (5343, 5369)]