20921645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2437}}^1$

素因数の和:2560

約数の個数: 16

約数和(自身を含む): 26857008

約数和(自身を除く): 5935363

約数列:

[1, 5, 17, 85, 101, 505, 1717, 2437, 8585, 12185, 41429, 207145, 246137, 1230685, 4184329, 20921645]

約数ペア:

[(1, 20921645), (5, 4184329), (17, 1230685), (85, 246137), (101, 207145), (505, 41429), (1717, 12185), (2437, 8585)]