19983315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{431}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 35085312

約数和(自身を除く): 15101997

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 281, 431, 843, 1293, 1405, 2155, 3091, 4215, 4741, 6465, 9273, 14223, 15455, 23705, 46365, 71115, 121111, 363333, 605555, 1332221, 1816665, 3996663, 6661105, 19983315]

約数ペア:

[(1, 19983315), (3, 6661105), (5, 3996663), (11, 1816665), (15, 1332221), (33, 605555), (55, 363333), (165, 121111), (281, 71115), (431, 46365), (843, 23705), (1293, 15455), (1405, 14223), (2155, 9273), (3091, 6465), (4215, 4741)]