21375494

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 21133306

約数列:

[1, 2, 7, 14, 17, 19, 29, 34, 38, 58, 119, 133, 163, 203, 238, 266, 323, 326, 406, 493, 551, 646, 986, 1102, 1141, 2261, 2282, 2771, 3097, 3451, 3857, 4522, 4727, 5542, 6194, 6902, 7714, 9367, 9454, 18734, 19397, 21679, 33089, 38794, 43358, 52649, 65569, 66178, 80359, 89813, 105298, 131138, 160718, 179626, 368543, 562513, 628691, 737086, 1125026, 1257382, 1526821, 3053642, 10687747, 21375494]

約数ペア:

[(1, 21375494), (2, 10687747), (7, 3053642), (14, 1526821), (17, 1257382), (19, 1125026), (29, 737086), (34, 628691), (38, 562513), (58, 368543), (119, 179626), (133, 160718), (163, 131138), (203, 105298), (238, 89813), (266, 80359), (323, 66178), (326, 65569), (406, 52649), (493, 43358), (551, 38794), (646, 33089), (986, 21679), (1102, 19397), (1141, 18734), (2261, 9454), (2282, 9367), (2771, 7714), (3097, 6902), (3451, 6194), (3857, 5542), (4522, 4727)]