21635509

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1367}}^1$

素因数の和:1417

約数の個数: 24

約数和(自身を含む): 28071360

約数和(自身を除く): 6435851

約数列:

[1, 7, 17, 19, 49, 119, 133, 323, 833, 931, 1367, 2261, 9569, 15827, 23239, 25973, 66983, 162673, 181811, 441541, 1138711, 1272677, 3090787, 21635509]

約数ペア:

[(1, 21635509), (7, 3090787), (17, 1272677), (19, 1138711), (49, 441541), (119, 181811), (133, 162673), (323, 66983), (833, 25973), (931, 23239), (1367, 15827), (2261, 9569)]