28223559

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:586

約数の個数: 60

約数和(自身を含む): 52913784

約数和(自身を除く): 24690225

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 273, 351, 441, 547, 567, 637, 819, 1053, 1323, 1641, 1911, 2457, 3829, 3969, 4923, 5733, 7111, 7371, 11487, 14769, 17199, 21333, 26803, 34461, 44307, 49777, 51597, 63999, 80409, 103383, 149331, 191997, 241227, 310149, 348439, 447993, 575991, 723681, 1045317, 1343979, 2171043, 3135951, 4031937, 9407853, 28223559]

約数ペア:

[(1, 28223559), (3, 9407853), (7, 4031937), (9, 3135951), (13, 2171043), (21, 1343979), (27, 1045317), (39, 723681), (49, 575991), (63, 447993), (81, 348439), (91, 310149), (117, 241227), (147, 191997), (189, 149331), (273, 103383), (351, 80409), (441, 63999), (547, 51597), (567, 49777), (637, 44307), (819, 34461), (1053, 26803), (1323, 21333), (1641, 17199), (1911, 14769), (2457, 11487), (3829, 7371), (3969, 7111), (4923, 5733)]