21364115

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1\times {\mathrm{409}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 26607360

約数和(自身を除く): 5243245

約数列:

[1, 5, 31, 155, 337, 409, 1685, 2045, 10447, 12679, 52235, 63395, 137833, 689165, 4272823, 21364115]

約数ペア:

[(1, 21364115), (5, 4272823), (31, 689165), (155, 137833), (337, 63395), (409, 52235), (1685, 12679), (2045, 10447)]