20721894

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2713}}^1$

素因数の和:2804

約数の個数: 32

約数和(自身を含む): 44292480

約数和(自身を除く): 23570586

約数列:

[1, 2, 3, 6, 19, 38, 57, 67, 114, 134, 201, 402, 1273, 2546, 2713, 3819, 5426, 7638, 8139, 16278, 51547, 103094, 154641, 181771, 309282, 363542, 545313, 1090626, 3453649, 6907298, 10360947, 20721894]

約数ペア:

[(1, 20721894), (2, 10360947), (3, 6907298), (6, 3453649), (19, 1090626), (38, 545313), (57, 363542), (67, 309282), (114, 181771), (134, 154641), (201, 103094), (402, 51547), (1273, 16278), (2546, 8139), (2713, 7638), (3819, 5426)]