20539185

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 13301967

約数列:

[1, 3, 5, 15, 67, 107, 191, 201, 321, 335, 535, 573, 955, 1005, 1605, 2865, 7169, 12797, 20437, 21507, 35845, 38391, 61311, 63985, 102185, 107535, 191955, 306555, 1369279, 4107837, 6846395, 20539185]

約数ペア:

[(1, 20539185), (3, 6846395), (5, 4107837), (15, 1369279), (67, 306555), (107, 191955), (191, 107535), (201, 102185), (321, 63985), (335, 61311), (535, 38391), (573, 35845), (955, 21507), (1005, 20437), (1605, 12797), (2865, 7169)]