71987709

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{1721}}^1$

素因数の和:1988

約数の個数: 16

約数和(自身を含む): 97864704

約数和(自身を除く): 25876995

約数列:

[1, 3, 73, 191, 219, 573, 1721, 5163, 13943, 41829, 125633, 328711, 376899, 986133, 23995903, 71987709]

約数ペア:

[(1, 71987709), (3, 23995903), (73, 986133), (191, 376899), (219, 328711), (573, 125633), (1721, 41829), (5163, 13943)]