20394543

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1671

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12264657

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1619, 4199, 4857, 12597, 21047, 27523, 30761, 63141, 82569, 92283, 357799, 399893, 522937, 1073397, 1199679, 1568811, 6798181, 20394543]

約数ペア:

[(1, 20394543), (3, 6798181), (13, 1568811), (17, 1199679), (19, 1073397), (39, 522937), (51, 399893), (57, 357799), (221, 92283), (247, 82569), (323, 63141), (663, 30761), (741, 27523), (969, 21047), (1619, 12597), (4199, 4857)]