87811857

素因数分解:

$3^4\times 7^1\times {\mathrm{154871}}^1$

素因数の和:154890

約数の個数: 20

約数和(自身を含む): 149916096

約数和(自身を除く): 62104239

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 154871, 464613, 1084097, 1393839, 3252291, 4181517, 9756873, 12544551, 29270619, 87811857]

約数ペア:

[(1, 87811857), (3, 29270619), (7, 12544551), (9, 9756873), (21, 4181517), (27, 3252291), (63, 1393839), (81, 1084097), (189, 464613), (567, 154871)]