87640221

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1\times {\mathrm{691}}^1$

素因数の和:1392

約数の個数: 16

約数和(自身を含む): 118957568

約数和(自身を除く): 31317347

約数列:

[1, 3, 67, 201, 631, 691, 1893, 2073, 42277, 46297, 126831, 138891, 436021, 1308063, 29213407, 87640221]

約数ペア:

[(1, 87640221), (3, 29213407), (67, 1308063), (201, 436021), (631, 138891), (691, 126831), (1893, 46297), (2073, 42277)]