19863952

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{2963}}^1$

素因数の和:3390

約数の個数: 20

約数和(自身を含む): 38591280

約数和(自身を除く): 18727328

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 2963, 3352, 5926, 6704, 11852, 23704, 47408, 1241497, 2482994, 4965988, 9931976, 19863952]

約数ペア:

[(1, 19863952), (2, 9931976), (4, 4965988), (8, 2482994), (16, 1241497), (419, 47408), (838, 23704), (1676, 11852), (2963, 6704), (3352, 5926)]