20717818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{5261}}^1$

素因数の和:5453

約数の個数: 16

約数和(自身を含む): 34097760

約数和(自身を除く): 13379942

約数列:

[1, 2, 11, 22, 179, 358, 1969, 3938, 5261, 10522, 57871, 115742, 941719, 1883438, 10358909, 20717818]

約数ペア:

[(1, 20717818), (2, 10358909), (11, 1883438), (22, 941719), (179, 115742), (358, 57871), (1969, 10522), (3938, 5261)]