20185905

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{983}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 33227712

約数和(自身を除く): 13041807

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 983, 1369, 2949, 4107, 4915, 6845, 14745, 20535, 36371, 109113, 181855, 545565, 1345727, 4037181, 6728635, 20185905]

約数ペア:

[(1, 20185905), (3, 6728635), (5, 4037181), (15, 1345727), (37, 545565), (111, 181855), (185, 109113), (555, 36371), (983, 20535), (1369, 14745), (2949, 6845), (4107, 4915)]