18539946

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 41446080

約数和(自身を除く): 22906134

約数列:

[1, 2, 3, 6, 9, 18, 71, 89, 142, 163, 178, 213, 267, 326, 426, 489, 534, 639, 801, 978, 1278, 1467, 1602, 2934, 6319, 11573, 12638, 14507, 18957, 23146, 29014, 34719, 37914, 43521, 56871, 69438, 87042, 104157, 113742, 130563, 208314, 261126, 1029997, 2059994, 3089991, 6179982, 9269973, 18539946]

約数ペア:

[(1, 18539946), (2, 9269973), (3, 6179982), (6, 3089991), (9, 2059994), (18, 1029997), (71, 261126), (89, 208314), (142, 130563), (163, 113742), (178, 104157), (213, 87042), (267, 69438), (326, 56871), (426, 43521), (489, 37914), (534, 34719), (639, 29014), (801, 23146), (978, 18957), (1278, 14507), (1467, 12638), (1602, 11573), (2934, 6319)]