21951672

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 35072328

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 89, 129, 172, 178, 239, 258, 267, 344, 356, 478, 516, 534, 712, 717, 956, 1032, 1068, 1434, 1912, 2136, 2868, 3827, 5736, 7654, 10277, 11481, 15308, 20554, 21271, 22962, 30616, 30831, 41108, 42542, 45924, 61662, 63813, 82216, 85084, 91848, 123324, 127626, 170168, 246648, 255252, 510504, 914653, 1829306, 2743959, 3658612, 5487918, 7317224, 10975836, 21951672]

約数ペア:

[(1, 21951672), (2, 10975836), (3, 7317224), (4, 5487918), (6, 3658612), (8, 2743959), (12, 1829306), (24, 914653), (43, 510504), (86, 255252), (89, 246648), (129, 170168), (172, 127626), (178, 123324), (239, 91848), (258, 85084), (267, 82216), (344, 63813), (356, 61662), (478, 45924), (516, 42542), (534, 41108), (712, 30831), (717, 30616), (956, 22962), (1032, 21271), (1068, 20554), (1434, 15308), (1912, 11481), (2136, 10277), (2868, 7654), (3827, 5736)]