21109767

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2039}}^1$

素因数の和:2095

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14141433

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 357, 493, 609, 1479, 2039, 3451, 6117, 10353, 14273, 34663, 42819, 59131, 103989, 177393, 242641, 413917, 727923, 1005227, 1241751, 3015681, 7036589, 21109767]

約数ペア:

[(1, 21109767), (3, 7036589), (7, 3015681), (17, 1241751), (21, 1005227), (29, 727923), (51, 413917), (87, 242641), (119, 177393), (203, 103989), (357, 59131), (493, 42819), (609, 34663), (1479, 14273), (2039, 10353), (3451, 6117)]