21298626

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{1801}}^1$

素因数の和:1888

約数の個数: 40

約数和(自身を含む): 48405324

約数和(自身を除く): 27106698

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 438, 657, 1314, 1801, 1971, 3602, 3942, 5403, 5913, 10806, 11826, 16209, 32418, 48627, 97254, 131473, 145881, 262946, 291762, 394419, 788838, 1183257, 2366514, 3549771, 7099542, 10649313, 21298626]

約数ペア:

[(1, 21298626), (2, 10649313), (3, 7099542), (6, 3549771), (9, 2366514), (18, 1183257), (27, 788838), (54, 394419), (73, 291762), (81, 262946), (146, 145881), (162, 131473), (219, 97254), (438, 48627), (657, 32418), (1314, 16209), (1801, 11826), (1971, 10806), (3602, 5913), (3942, 5403)]