20197573198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1\times {\mathrm{16979}}^1$

素因数の和:17520

約数の個数: 32

約数和(自身を含む): 33375888000

約数和(自身を除く): 13178314802

約数列:

[1, 2, 11, 22, 139, 278, 389, 778, 1529, 3058, 4279, 8558, 16979, 33958, 54071, 108142, 186769, 373538, 594781, 1189562, 2360081, 4720162, 6604831, 13209662, 25960891, 51921782, 72653141, 145306282, 918071509, 1836143018, 10098786599, 20197573198]

約数ペア:

[(1, 20197573198), (2, 10098786599), (11, 1836143018), (22, 918071509), (139, 145306282), (278, 72653141), (389, 51921782), (778, 25960891), (1529, 13209662), (3058, 6604831), (4279, 4720162), (8558, 2360081), (16979, 1189562), (33958, 594781), (54071, 373538), (108142, 186769)]