19708835

素因数分解:

$5^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 25293840

約数和(自身を除く): 5585005

約数列:

[1, 5, 29, 43, 109, 145, 215, 545, 841, 1247, 3161, 4205, 4687, 6235, 15805, 23435, 36163, 91669, 135923, 180815, 458345, 679615, 3941767, 19708835]

約数ペア:

[(1, 19708835), (5, 3941767), (29, 679615), (43, 458345), (109, 180815), (145, 135923), (215, 91669), (545, 36163), (841, 23435), (1247, 15805), (3161, 6235), (4205, 4687)]