21672758

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1087

約数の個数: 16

約数和(自身を含む): 33202224

約数和(自身を除く): 11529466

約数列:

[1, 2, 67, 134, 197, 394, 821, 1642, 13199, 26398, 55007, 110014, 161737, 323474, 10836379, 21672758]

約数ペア:

[(1, 21672758), (2, 10836379), (67, 323474), (134, 161737), (197, 110014), (394, 55007), (821, 26398), (1642, 13199)]