28181538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20333}}^1$

素因数の和:20359

約数の個数: 48

約数和(自身を含む): 76130496

約数和(自身を除く): 47948958

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 20333, 40666, 60999, 121998, 142331, 182997, 223663, 284662, 365994, 426993, 447326, 670989, 853986, 1280979, 1341978, 1565641, 2012967, 2561958, 3131282, 4025934, 4696923, 9393846, 14090769, 28181538]

約数ペア:

[(1, 28181538), (2, 14090769), (3, 9393846), (6, 4696923), (7, 4025934), (9, 3131282), (11, 2561958), (14, 2012967), (18, 1565641), (21, 1341978), (22, 1280979), (33, 853986), (42, 670989), (63, 447326), (66, 426993), (77, 365994), (99, 284662), (126, 223663), (154, 182997), (198, 142331), (231, 121998), (462, 60999), (693, 40666), (1386, 20333)]