81209763

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{19919}}^1$

素因数の和:20079

約数の個数: 16

約数和(自身を含む): 121113600

約数和(自身を除く): 39903837

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 19919, 59757, 179271, 537813, 3007769, 9023307, 27069921, 81209763]

約数ペア:

[(1, 81209763), (3, 27069921), (9, 9023307), (27, 3007769), (151, 537813), (453, 179271), (1359, 59757), (4077, 19919)]