21686986004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{3438013}}^1$

素因数の和:3438119

約数の個数: 24

約数和(自身を含む): 40431044640

約数和(自身を除く): 18744058636

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 1577, 3154, 6308, 3438013, 6876026, 13752052, 65322247, 130644494, 261288988, 285355079, 570710158, 1141420316, 5421746501, 10843493002, 21686986004]

約数ペア:

[(1, 21686986004), (2, 10843493002), (4, 5421746501), (19, 1141420316), (38, 570710158), (76, 285355079), (83, 261288988), (166, 130644494), (332, 65322247), (1577, 13752052), (3154, 6876026), (6308, 3438013)]