20613558

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2543}}^1$

素因数の和:2748

約数の個数: 32

約数和(自身を含む): 47379456

約数和(自身を除く): 26765898

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 193, 386, 579, 1158, 1351, 2543, 2702, 4053, 5086, 7629, 8106, 15258, 17801, 35602, 53403, 106806, 490799, 981598, 1472397, 2944794, 3435593, 6871186, 10306779, 20613558]

約数ペア:

[(1, 20613558), (2, 10306779), (3, 6871186), (6, 3435593), (7, 2944794), (14, 1472397), (21, 981598), (42, 490799), (193, 106806), (386, 53403), (579, 35602), (1158, 17801), (1351, 15258), (2543, 8106), (2702, 7629), (4053, 5086)]