20731670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121951}}^1$

素因数の和:121975

約数の個数: 16

約数和(自身を含む): 39512448

約数和(自身を除く): 18780778

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121951, 243902, 609755, 1219510, 2073167, 4146334, 10365835, 20731670]

約数ペア:

[(1, 20731670), (2, 10365835), (5, 4146334), (10, 2073167), (17, 1219510), (34, 609755), (85, 243902), (170, 121951)]