20486596

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4987}}^1$

素因数の和:5083

約数の個数: 24

約数和(自身を含む): 39105920

約数和(自身を除く): 18619324

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4987, 9974, 19948, 64831, 129662, 259324, 393973, 787946, 1575892, 5121649, 10243298, 20486596]

約数ペア:

[(1, 20486596), (2, 10243298), (4, 5121649), (13, 1575892), (26, 787946), (52, 393973), (79, 259324), (158, 129662), (316, 64831), (1027, 19948), (2054, 9974), (4108, 4987)]