21684394

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1933}}^1$

素因数の和:2085

約数の個数: 16

約数和(自身を含む): 33419520

約数和(自身を除く): 11735126

約数列:

[1, 2, 71, 79, 142, 158, 1933, 3866, 5609, 11218, 137243, 152707, 274486, 305414, 10842197, 21684394]

約数ペア:

[(1, 21684394), (2, 10842197), (71, 305414), (79, 274486), (142, 152707), (158, 137243), (1933, 11218), (3866, 5609)]