20801336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3557}}^1$

素因数の和:3623

約数の個数: 32

約数和(自身を含む): 42269040

約数和(自身を除く): 21467704

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3557, 5848, 7114, 14228, 28456, 60469, 120938, 152951, 241876, 305902, 483752, 611804, 1223608, 2600167, 5200334, 10400668, 20801336]

約数ペア:

[(1, 20801336), (2, 10400668), (4, 5200334), (8, 2600167), (17, 1223608), (34, 611804), (43, 483752), (68, 305902), (86, 241876), (136, 152951), (172, 120938), (344, 60469), (731, 28456), (1462, 14228), (2924, 7114), (3557, 5848)]