28381419

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 18568341

約数列:

[1, 3, 9, 11, 33, 43, 59, 99, 113, 129, 177, 339, 387, 473, 531, 649, 1017, 1243, 1419, 1947, 2537, 3729, 4257, 4859, 5841, 6667, 7611, 11187, 14577, 20001, 22833, 27907, 43731, 53449, 60003, 73337, 83721, 160347, 220011, 251163, 286681, 481041, 660033, 860043, 2580129, 3153491, 9460473, 28381419]

約数ペア:

[(1, 28381419), (3, 9460473), (9, 3153491), (11, 2580129), (33, 860043), (43, 660033), (59, 481041), (99, 286681), (113, 251163), (129, 220011), (177, 160347), (339, 83721), (387, 73337), (473, 60003), (531, 53449), (649, 43731), (1017, 27907), (1243, 22833), (1419, 20001), (1947, 14577), (2537, 11187), (3729, 7611), (4257, 6667), (4859, 5841)]