20947394

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{3371}}^1$

素因数の和:3625

約数の個数: 16

約数和(自身を含む): 33989760

約数和(自身を除く): 13042366

約数列:

[1, 2, 13, 26, 239, 478, 3107, 3371, 6214, 6742, 43823, 87646, 805669, 1611338, 10473697, 20947394]

約数ペア:

[(1, 20947394), (2, 10473697), (13, 1611338), (26, 805669), (239, 87646), (478, 43823), (3107, 6742), (3371, 6214)]