21608111

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4391}}^1$

素因数の和:4454

約数の個数: 16

約数和(自身を含む): 26703360

約数和(自身を除く): 5095249

約数列:

[1, 7, 19, 37, 133, 259, 703, 4391, 4921, 30737, 83429, 162467, 584003, 1137269, 3086873, 21608111]

約数ペア:

[(1, 21608111), (7, 3086873), (19, 1137269), (37, 584003), (133, 162467), (259, 83429), (703, 30737), (4391, 4921)]