20396738

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{601}}^1$

素因数の和:913

約数の個数: 16

約数和(自身を含む): 31207680

約数和(自身を除く): 10810942

約数列:

[1, 2, 71, 142, 239, 478, 601, 1202, 16969, 33938, 42671, 85342, 143639, 287278, 10198369, 20396738]

約数ペア:

[(1, 20396738), (2, 10198369), (71, 287278), (142, 143639), (239, 85342), (478, 42671), (601, 33938), (1202, 16969)]