18779828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2267}}^1$

素因数の和:2399

約数の個数: 24

約数和(自身を含む): 34927200

約数和(自身を除く): 16147372

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2267, 4142, 4534, 8284, 9068, 43073, 86146, 172292, 247103, 494206, 988412, 4694957, 9389914, 18779828]

約数ペア:

[(1, 18779828), (2, 9389914), (4, 4694957), (19, 988412), (38, 494206), (76, 247103), (109, 172292), (218, 86146), (436, 43073), (2071, 9068), (2267, 8284), (4142, 4534)]