20900776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2753}}^1$

素因数の和:2845

約数の個数: 32

約数和(自身を含む): 42797160

約数和(自身を除く): 21896384

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2753, 3796, 5506, 7592, 11012, 22024, 35789, 71578, 143156, 200969, 286312, 401938, 803876, 1607752, 2612597, 5225194, 10450388, 20900776]

約数ペア:

[(1, 20900776), (2, 10450388), (4, 5225194), (8, 2612597), (13, 1607752), (26, 803876), (52, 401938), (73, 286312), (104, 200969), (146, 143156), (292, 71578), (584, 35789), (949, 22024), (1898, 11012), (2753, 7592), (3796, 5506)]