72870987

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{15991}}^1$

素因数の和:16039

約数の個数: 24

約数和(自身を含む): 116677632

約数和(自身を除く): 43806645

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 15991, 47973, 111937, 335811, 495721, 783559, 1487163, 2350677, 3470047, 10410141, 24290329, 72870987]

約数ペア:

[(1, 72870987), (3, 24290329), (7, 10410141), (21, 3470047), (31, 2350677), (49, 1487163), (93, 783559), (147, 495721), (217, 335811), (651, 111937), (1519, 47973), (4557, 15991)]