20188521

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5303}}^1$

素因数の和:5362

約数の個数: 20

約数和(自身を含む): 30805632

約数和(自身を除く): 10617111

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5303, 15909, 47727, 143181, 249241, 429543, 747723, 2243169, 6729507, 20188521]

約数ペア:

[(1, 20188521), (3, 6729507), (9, 2243169), (27, 747723), (47, 429543), (81, 249241), (141, 143181), (423, 47727), (1269, 15909), (3807, 5303)]