86859801

素因数分解:

$3^2\times 7^2\times {\mathrm{196961}}^1$

素因数の和:196981

約数の個数: 18

約数和(自身を含む): 145948842

約数和(自身を除く): 59089041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 196961, 590883, 1378727, 1772649, 4136181, 9651089, 12408543, 28953267, 86859801]

約数ペア:

[(1, 86859801), (3, 28953267), (7, 12408543), (9, 9651089), (21, 4136181), (49, 1772649), (63, 1378727), (147, 590883), (441, 196961)]