19961916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3121}}^1$

素因数の和:3182

約数の個数: 48

約数和(自身を含む): 51400608

約数和(自身を除く): 31438692

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3121, 3198, 6242, 6396, 9363, 12484, 18726, 37452, 40573, 81146, 121719, 127961, 162292, 243438, 255922, 383883, 486876, 511844, 767766, 1535532, 1663493, 3326986, 4990479, 6653972, 9980958, 19961916]

約数ペア:

[(1, 19961916), (2, 9980958), (3, 6653972), (4, 4990479), (6, 3326986), (12, 1663493), (13, 1535532), (26, 767766), (39, 511844), (41, 486876), (52, 383883), (78, 255922), (82, 243438), (123, 162292), (156, 127961), (164, 121719), (246, 81146), (492, 40573), (533, 37452), (1066, 18726), (1599, 12484), (2132, 9363), (3121, 6396), (3198, 6242)]