20720364

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2543}}^1$

素因数の和:2654

約数の個数: 48

約数和(自身を含む): 55845888

約数和(自身を除く): 35125524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 1164, 1358, 2037, 2543, 2716, 4074, 5086, 7629, 8148, 10172, 15258, 17801, 30516, 35602, 53403, 71204, 106806, 213612, 246671, 493342, 740013, 986684, 1480026, 1726697, 2960052, 3453394, 5180091, 6906788, 10360182, 20720364]

約数ペア:

[(1, 20720364), (2, 10360182), (3, 6906788), (4, 5180091), (6, 3453394), (7, 2960052), (12, 1726697), (14, 1480026), (21, 986684), (28, 740013), (42, 493342), (84, 246671), (97, 213612), (194, 106806), (291, 71204), (388, 53403), (582, 35602), (679, 30516), (1164, 17801), (1358, 15258), (2037, 10172), (2543, 8148), (2716, 7629), (4074, 5086)]