21873685

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{2473}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 27609840

約数和(自身を除く): 5736155

約数列:

[1, 5, 29, 61, 145, 305, 1769, 2473, 8845, 12365, 71717, 150853, 358585, 754265, 4374737, 21873685]

約数ペア:

[(1, 21873685), (5, 4374737), (29, 754265), (61, 358585), (145, 150853), (305, 71717), (1769, 12365), (2473, 8845)]