20960732

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 36

約数和(自身を含む): 40243896

約数和(自身を除く): 19283164

約数列:

[1, 2, 4, 13, 26, 52, 101, 169, 202, 307, 338, 404, 614, 676, 1228, 1313, 2626, 3991, 5252, 7982, 15964, 17069, 31007, 34138, 51883, 62014, 68276, 103766, 124028, 207532, 403091, 806182, 1612364, 5240183, 10480366, 20960732]

約数ペア:

[(1, 20960732), (2, 10480366), (4, 5240183), (13, 1612364), (26, 806182), (52, 403091), (101, 207532), (169, 124028), (202, 103766), (307, 68276), (338, 62014), (404, 51883), (614, 34138), (676, 31007), (1228, 17069), (1313, 15964), (2626, 7982), (3991, 5252)]