81298791

素因数分解:

$3^2\times 7^2\times {\mathrm{184351}}^1$

素因数の和:184371

約数の個数: 18

約数和(自身を含む): 136604832

約数和(自身を除く): 55306041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 184351, 553053, 1290457, 1659159, 3871371, 9033199, 11614113, 27099597, 81298791]

約数ペア:

[(1, 81298791), (3, 27099597), (7, 11614113), (9, 9033199), (21, 3871371), (49, 1659159), (63, 1290457), (147, 553053), (441, 184351)]