12820496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61637}}^1$

素因数の和:61658

約数の個数: 20

約数和(自身を含む): 26750892

約数和(自身を除く): 13930396

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 61637, 123274, 246548, 493096, 801281, 986192, 1602562, 3205124, 6410248, 12820496]

約数ペア:

[(1, 12820496), (2, 6410248), (4, 3205124), (8, 1602562), (13, 986192), (16, 801281), (26, 493096), (52, 246548), (104, 123274), (208, 61637)]