20011481421

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{2539}}^1\times {\mathrm{37003}}^1$

素因数の和:39616

約数の個数: 16

約数和(自身を含む): 27069166080

約数和(自身を除く): 7057684659

約数列:

[1, 3, 71, 213, 2539, 7617, 37003, 111009, 180269, 540807, 2627213, 7881639, 93950617, 281851851, 6670493807, 20011481421]

約数ペア:

[(1, 20011481421), (3, 6670493807), (71, 281851851), (213, 93950617), (2539, 7881639), (7617, 2627213), (37003, 540807), (111009, 180269)]