20809785616

素因数分解:

$2^4\times {\mathrm{1303}}^1\times {\mathrm{998167}}^1$

素因数の和:999478

約数の個数: 20

約数和(自身を含む): 40349943232

約数和(自身を除く): 19540157616

約数列:

[1, 2, 4, 8, 16, 1303, 2606, 5212, 10424, 20848, 998167, 1996334, 3992668, 7985336, 15970672, 1300611601, 2601223202, 5202446404, 10404892808, 20809785616]

約数ペア:

[(1, 20809785616), (2, 10404892808), (4, 5202446404), (8, 2601223202), (16, 1300611601), (1303, 15970672), (2606, 7985336), (5212, 3992668), (10424, 1996334), (20848, 998167)]