20870146

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25639}}^1$

素因数の和:25689

約数の個数: 16

約数和(自身を含む): 35075520

約数和(自身を除く): 14205374

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25639, 51278, 282029, 564058, 948643, 1897286, 10435073, 20870146]

約数ペア:

[(1, 20870146), (2, 10435073), (11, 1897286), (22, 948643), (37, 564058), (74, 282029), (407, 51278), (814, 25639)]