20617394

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77509}}^1$

素因数の和:77537

約数の個数: 16

約数和(自身を含む): 37204800

約数和(自身を除く): 16587406

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77509, 155018, 542563, 1085126, 1472671, 2945342, 10308697, 20617394]

約数ペア:

[(1, 20617394), (2, 10308697), (7, 2945342), (14, 1472671), (19, 1085126), (38, 542563), (133, 155018), (266, 77509)]