21871696

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 54246528

約数和(自身を除く): 32374832

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 41, 44, 56, 77, 82, 88, 112, 154, 164, 176, 287, 308, 328, 433, 451, 574, 616, 656, 866, 902, 1148, 1232, 1732, 1804, 2296, 3031, 3157, 3464, 3608, 4592, 4763, 6062, 6314, 6928, 7216, 9526, 12124, 12628, 17753, 19052, 24248, 25256, 33341, 35506, 38104, 48496, 50512, 66682, 71012, 76208, 124271, 133364, 142024, 195283, 248542, 266728, 284048, 390566, 497084, 533456, 781132, 994168, 1366981, 1562264, 1988336, 2733962, 3124528, 5467924, 10935848, 21871696]

約数ペア:

[(1, 21871696), (2, 10935848), (4, 5467924), (7, 3124528), (8, 2733962), (11, 1988336), (14, 1562264), (16, 1366981), (22, 994168), (28, 781132), (41, 533456), (44, 497084), (56, 390566), (77, 284048), (82, 266728), (88, 248542), (112, 195283), (154, 142024), (164, 133364), (176, 124271), (287, 76208), (308, 71012), (328, 66682), (433, 50512), (451, 48496), (574, 38104), (616, 35506), (656, 33341), (866, 25256), (902, 24248), (1148, 19052), (1232, 17753), (1732, 12628), (1804, 12124), (2296, 9526), (3031, 7216), (3157, 6928), (3464, 6314), (3608, 6062), (4592, 4763)]