21385242

素因数分解:

$2^1\times 3^3\times {\mathrm{239}}^1\times {\mathrm{1657}}^1$

素因数の和:1907

約数の個数: 32

約数和(自身を含む): 47750400

約数和(自身を除く): 26365158

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 239, 478, 717, 1434, 1657, 2151, 3314, 4302, 4971, 6453, 9942, 12906, 14913, 29826, 44739, 89478, 396023, 792046, 1188069, 2376138, 3564207, 7128414, 10692621, 21385242]

約数ペア:

[(1, 21385242), (2, 10692621), (3, 7128414), (6, 3564207), (9, 2376138), (18, 1188069), (27, 792046), (54, 396023), (239, 89478), (478, 44739), (717, 29826), (1434, 14913), (1657, 12906), (2151, 9942), (3314, 6453), (4302, 4971)]