20928759

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 28454400

約数和(自身を除く): 7525641

約数列:

[1, 3, 79, 233, 237, 379, 699, 1137, 18407, 29941, 55221, 88307, 89823, 264921, 6976253, 20928759]

約数ペア:

[(1, 20928759), (3, 6976253), (79, 264921), (233, 89823), (237, 88307), (379, 55221), (699, 29941), (1137, 18407)]