21619454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 35544960

約数和(自身を除く): 13925506

約数列:

[1, 2, 19, 38, 43, 86, 101, 131, 202, 262, 817, 1634, 1919, 2489, 3838, 4343, 4978, 5633, 8686, 11266, 13231, 26462, 82517, 107027, 165034, 214054, 251389, 502778, 568933, 1137866, 10809727, 21619454]

約数ペア:

[(1, 21619454), (2, 10809727), (19, 1137866), (38, 568933), (43, 502778), (86, 251389), (101, 214054), (131, 165034), (202, 107027), (262, 82517), (817, 26462), (1634, 13231), (1919, 11266), (2489, 8686), (3838, 5633), (4343, 4978)]