21442016

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 44135280

約数和(自身を除く): 22693264

約数列:

[1, 2, 4, 8, 16, 32, 41, 59, 82, 118, 164, 236, 277, 328, 472, 554, 656, 944, 1108, 1312, 1888, 2216, 2419, 4432, 4838, 8864, 9676, 11357, 16343, 19352, 22714, 32686, 38704, 45428, 65372, 77408, 90856, 130744, 181712, 261488, 363424, 522976, 670063, 1340126, 2680252, 5360504, 10721008, 21442016]

約数ペア:

[(1, 21442016), (2, 10721008), (4, 5360504), (8, 2680252), (16, 1340126), (32, 670063), (41, 522976), (59, 363424), (82, 261488), (118, 181712), (164, 130744), (236, 90856), (277, 77408), (328, 65372), (472, 45428), (554, 38704), (656, 32686), (944, 22714), (1108, 19352), (1312, 16343), (1888, 11357), (2216, 9676), (2419, 8864), (4432, 4838)]