212421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 16

約数和(自身を含む): 318528

約数和(自身を除く): 106107

約数列:

[1, 3, 11, 33, 41, 123, 157, 451, 471, 1353, 1727, 5181, 6437, 19311, 70807, 212421]

約数ペア:

[(1, 212421), (3, 70807), (11, 19311), (33, 6437), (41, 5181), (123, 1727), (157, 1353), (451, 471)]