388680978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103981}}^1$

素因数の和:104082

約数の個数: 32

約数和(自身を含む): 898404480

約数和(自身を除く): 509723502

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 103981, 207962, 311943, 623886, 727867, 1455734, 2183601, 4367202, 9254309, 18508618, 27762927, 55525854, 64780163, 129560326, 194340489, 388680978]

約数ペア:

[(1, 388680978), (2, 194340489), (3, 129560326), (6, 64780163), (7, 55525854), (14, 27762927), (21, 18508618), (42, 9254309), (89, 4367202), (178, 2183601), (267, 1455734), (534, 727867), (623, 623886), (1246, 311943), (1869, 207962), (3738, 103981)]