81929385

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25643}}^1$

素因数の和:25725

約数の個数: 24

約数和(自身を含む): 144016704

約数和(自身を除く): 62087319

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 25643, 76929, 128215, 230787, 384645, 1153935, 1820653, 5461959, 9103265, 16385877, 27309795, 81929385]

約数ペア:

[(1, 81929385), (3, 27309795), (5, 16385877), (9, 9103265), (15, 5461959), (45, 1820653), (71, 1153935), (213, 384645), (355, 230787), (639, 128215), (1065, 76929), (3195, 25643)]