20806984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3529}}^1$

素因数の和:3613

約数の個数: 32

約数和(自身を含む): 43207200

約数和(自身を除く): 22400216

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3529, 5896, 7058, 14116, 28232, 38819, 77638, 155276, 236443, 310552, 472886, 945772, 1891544, 2600873, 5201746, 10403492, 20806984]

約数ペア:

[(1, 20806984), (2, 10403492), (4, 5201746), (8, 2600873), (11, 1891544), (22, 945772), (44, 472886), (67, 310552), (88, 236443), (134, 155276), (268, 77638), (536, 38819), (737, 28232), (1474, 14116), (2948, 7058), (3529, 5896)]