20381992

素因数分解:

$2^3\times {\mathrm{191}}^1\times {\mathrm{13339}}^1$

素因数の和:13536

約数の個数: 16

約数和(自身を含む): 38419200

約数和(自身を除く): 18037208

約数列:

[1, 2, 4, 8, 191, 382, 764, 1528, 13339, 26678, 53356, 106712, 2547749, 5095498, 10190996, 20381992]

約数ペア:

[(1, 20381992), (2, 10190996), (4, 5095498), (8, 2547749), (191, 106712), (382, 53356), (764, 26678), (1528, 13339)]