212345815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{124543}}^1$

素因数の和:124590

約数の個数: 16

約数和(自身を含む): 286949376

約数和(自身を除く): 74603561

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 124543, 622715, 1369973, 3860833, 6849865, 19304165, 42469163, 212345815]

約数ペア:

[(1, 212345815), (5, 42469163), (11, 19304165), (31, 6849865), (55, 3860833), (155, 1369973), (341, 622715), (1705, 124543)]