21130189648

素因数分解:

$2^4\times {\mathrm{2713}}^1\times {\mathrm{486781}}^1$

素因数の和:489502

約数の個数: 20

約数和(自身を含む): 40954916788

約数和(自身を除く): 19824727140

約数列:

[1, 2, 4, 8, 16, 2713, 5426, 10852, 21704, 43408, 486781, 973562, 1947124, 3894248, 7788496, 1320636853, 2641273706, 5282547412, 10565094824, 21130189648]

約数ペア:

[(1, 21130189648), (2, 10565094824), (4, 5282547412), (8, 2641273706), (16, 1320636853), (2713, 7788496), (5426, 3894248), (10852, 1947124), (21704, 973562), (43408, 486781)]