20218548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{769}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 54158720

約数和(自身を除く): 33940172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 313, 626, 769, 939, 1252, 1538, 1878, 2191, 2307, 3076, 3756, 4382, 4614, 5383, 6573, 8764, 9228, 10766, 13146, 16149, 21532, 26292, 32298, 64596, 240697, 481394, 722091, 962788, 1444182, 1684879, 2888364, 3369758, 5054637, 6739516, 10109274, 20218548]

約数ペア:

[(1, 20218548), (2, 10109274), (3, 6739516), (4, 5054637), (6, 3369758), (7, 2888364), (12, 1684879), (14, 1444182), (21, 962788), (28, 722091), (42, 481394), (84, 240697), (313, 64596), (626, 32298), (769, 26292), (939, 21532), (1252, 16149), (1538, 13146), (1878, 10766), (2191, 9228), (2307, 8764), (3076, 6573), (3756, 5383), (4382, 4614)]