7921683

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 15365376

約数和(自身を除く): 7443693

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 49, 63, 69, 71, 77, 99, 147, 161, 207, 213, 231, 253, 441, 483, 497, 539, 639, 693, 759, 781, 1127, 1449, 1491, 1617, 1633, 1771, 2277, 2343, 3381, 3479, 4473, 4851, 4899, 5313, 5467, 7029, 10143, 10437, 11431, 12397, 14697, 15939, 16401, 17963, 31311, 34293, 37191, 38269, 49203, 53889, 80017, 102879, 111573, 114807, 125741, 161667, 240051, 344421, 377223, 720153, 880187, 1131669, 2640561, 7921683]

約数ペア:

[(1, 7921683), (3, 2640561), (7, 1131669), (9, 880187), (11, 720153), (21, 377223), (23, 344421), (33, 240051), (49, 161667), (63, 125741), (69, 114807), (71, 111573), (77, 102879), (99, 80017), (147, 53889), (161, 49203), (207, 38269), (213, 37191), (231, 34293), (253, 31311), (441, 17963), (483, 16401), (497, 15939), (539, 14697), (639, 12397), (693, 11431), (759, 10437), (781, 10143), (1127, 7029), (1449, 5467), (1491, 5313), (1617, 4899), (1633, 4851), (1771, 4473), (2277, 3479), (2343, 3381)]