20787976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12433}}^1$

素因数の和:12469

約数の個数: 32

約数和(自身を含む): 44762400

約数和(自身を除く): 23974424

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12433, 24866, 49732, 99464, 136763, 236227, 273526, 472454, 547052, 944908, 1094104, 1889816, 2598497, 5196994, 10393988, 20787976]

約数ペア:

[(1, 20787976), (2, 10393988), (4, 5196994), (8, 2598497), (11, 1889816), (19, 1094104), (22, 944908), (38, 547052), (44, 472454), (76, 273526), (88, 236227), (152, 136763), (209, 99464), (418, 49732), (836, 24866), (1672, 12433)]