20848797

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 31222776

約数和(自身を除く): 10373979

約数列:

[1, 3, 9, 37, 111, 137, 333, 411, 457, 1233, 1371, 4113, 5069, 15207, 16909, 45621, 50727, 62609, 152181, 187827, 563481, 2316533, 6949599, 20848797]

約数ペア:

[(1, 20848797), (3, 6949599), (9, 2316533), (37, 563481), (111, 187827), (137, 152181), (333, 62609), (411, 50727), (457, 45621), (1233, 16909), (1371, 15207), (4113, 5069)]