21471558

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 47402496

約数和(自身を除く): 25930938

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 361, 431, 437, 722, 862, 874, 1083, 1293, 1311, 2166, 2586, 2622, 8189, 8303, 9913, 16378, 16606, 19826, 24567, 24909, 29739, 49134, 49818, 59478, 155591, 188347, 311182, 376694, 466773, 565041, 933546, 1130082, 3578593, 7157186, 10735779, 21471558]

約数ペア:

[(1, 21471558), (2, 10735779), (3, 7157186), (6, 3578593), (19, 1130082), (23, 933546), (38, 565041), (46, 466773), (57, 376694), (69, 311182), (114, 188347), (138, 155591), (361, 59478), (431, 49818), (437, 49134), (722, 29739), (862, 24909), (874, 24567), (1083, 19826), (1293, 16606), (1311, 16378), (2166, 9913), (2586, 8303), (2622, 8189)]