28665273

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 48698496

約数和(自身を除く): 20033223

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 169, 197, 273, 287, 507, 533, 591, 861, 1183, 1379, 1599, 2561, 3549, 3731, 4137, 6929, 7683, 8077, 11193, 17927, 20787, 24231, 33293, 48503, 53781, 56539, 99879, 105001, 145509, 169617, 233051, 315003, 699153, 735007, 1365013, 2205021, 4095039, 9555091, 28665273]

約数ペア:

[(1, 28665273), (3, 9555091), (7, 4095039), (13, 2205021), (21, 1365013), (39, 735007), (41, 699153), (91, 315003), (123, 233051), (169, 169617), (197, 145509), (273, 105001), (287, 99879), (507, 56539), (533, 53781), (591, 48503), (861, 33293), (1183, 24231), (1379, 20787), (1599, 17927), (2561, 11193), (3549, 8077), (3731, 7683), (4137, 6929)]