20672386

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 36702720

約数和(自身を除く): 16030334

約数列:

[1, 2, 7, 14, 47, 89, 94, 178, 329, 353, 623, 658, 706, 1246, 2471, 4183, 4942, 8366, 16591, 29281, 31417, 33182, 58562, 62834, 116137, 219919, 232274, 439838, 1476599, 2953198, 10336193, 20672386]

約数ペア:

[(1, 20672386), (2, 10336193), (7, 2953198), (14, 1476599), (47, 439838), (89, 232274), (94, 219919), (178, 116137), (329, 62834), (353, 58562), (623, 33182), (658, 31417), (706, 29281), (1246, 16591), (2471, 8366), (4183, 4942)]