21367863

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2137}}^1$

素因数の和:2255

約数の個数: 24

約数和(自身を含む): 34019856

約数和(自身を除く): 12651993

約数列:

[1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 2137, 3333, 6411, 9999, 19233, 23507, 70521, 211563, 215837, 647511, 1942533, 2374207, 7122621, 21367863]

約数ペア:

[(1, 21367863), (3, 7122621), (9, 2374207), (11, 1942533), (33, 647511), (99, 215837), (101, 211563), (303, 70521), (909, 23507), (1111, 19233), (2137, 9999), (3333, 6411)]