21542079

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1021}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 31019744

約数和(自身を除く): 9477665

約数列:

[1, 3, 13, 39, 541, 1021, 1623, 3063, 7033, 13273, 21099, 39819, 552361, 1657083, 7180693, 21542079]

約数ペア:

[(1, 21542079), (3, 7180693), (13, 1657083), (39, 552361), (541, 39819), (1021, 21099), (1623, 13273), (3063, 7033)]