20753421

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12979}}^1$

素因数の和:13036

約数の個数: 16

約数和(自身を含む): 30528960

約数和(自身を除く): 9775539

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12979, 38937, 168727, 506181, 532139, 1596417, 6917807, 20753421]

約数ペア:

[(1, 20753421), (3, 6917807), (13, 1596417), (39, 532139), (41, 506181), (123, 168727), (533, 38937), (1599, 12979)]