20853896

素因数分解:

$2^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1213}}^1$

素因数の和:1533

約数の個数: 32

約数和(自身を含む): 44869440

約数和(自身を除く): 24015544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 307, 614, 1213, 1228, 2149, 2426, 2456, 4298, 4852, 8491, 8596, 9704, 16982, 17192, 33964, 67928, 372391, 744782, 1489564, 2606737, 2979128, 5213474, 10426948, 20853896]

約数ペア:

[(1, 20853896), (2, 10426948), (4, 5213474), (7, 2979128), (8, 2606737), (14, 1489564), (28, 744782), (56, 372391), (307, 67928), (614, 33964), (1213, 17192), (1228, 16982), (2149, 9704), (2426, 8596), (2456, 8491), (4298, 4852)]