20911416

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{881}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34972104

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 43, 46, 69, 86, 92, 129, 138, 172, 184, 258, 276, 344, 516, 552, 881, 989, 1032, 1762, 1978, 2643, 2967, 3524, 3956, 5286, 5934, 7048, 7912, 10572, 11868, 20263, 21144, 23736, 37883, 40526, 60789, 75766, 81052, 113649, 121578, 151532, 162104, 227298, 243156, 303064, 454596, 486312, 871309, 909192, 1742618, 2613927, 3485236, 5227854, 6970472, 10455708, 20911416]

約数ペア:

[(1, 20911416), (2, 10455708), (3, 6970472), (4, 5227854), (6, 3485236), (8, 2613927), (12, 1742618), (23, 909192), (24, 871309), (43, 486312), (46, 454596), (69, 303064), (86, 243156), (92, 227298), (129, 162104), (138, 151532), (172, 121578), (184, 113649), (258, 81052), (276, 75766), (344, 60789), (516, 40526), (552, 37883), (881, 23736), (989, 21144), (1032, 20263), (1762, 11868), (1978, 10572), (2643, 7912), (2967, 7048), (3524, 5934), (3956, 5286)]