71681721

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{4003}}^1$

素因数の和:4180

約数の個数: 16

約数和(自身を含む): 98402304

約数和(自身を除く): 26720583

約数列:

[1, 3, 47, 127, 141, 381, 4003, 5969, 12009, 17907, 188141, 508381, 564423, 1525143, 23893907, 71681721]

約数ペア:

[(1, 71681721), (3, 23893907), (47, 1525143), (127, 564423), (141, 508381), (381, 188141), (4003, 17907), (5969, 12009)]