21368156985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{1579}}^1\times {\mathrm{42961}}^1$

素因数の和:44558

約数の個数: 48

約数和(自身を含む): 42357095040

約数和(自身を除く): 20988938055

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 1579, 4737, 7895, 11053, 14211, 23685, 33159, 42961, 55265, 71055, 99477, 128883, 165795, 214805, 300727, 386649, 497385, 644415, 902181, 1503635, 1933245, 2706543, 4510905, 13532715, 67835419, 203506257, 339177095, 474847933, 610518771, 1017531285, 1424543799, 2374239665, 3052593855, 4273631397, 7122718995, 21368156985]

約数ペア:

[(1, 21368156985), (3, 7122718995), (5, 4273631397), (7, 3052593855), (9, 2374239665), (15, 1424543799), (21, 1017531285), (35, 610518771), (45, 474847933), (63, 339177095), (105, 203506257), (315, 67835419), (1579, 13532715), (4737, 4510905), (7895, 2706543), (11053, 1933245), (14211, 1503635), (23685, 902181), (33159, 644415), (42961, 497385), (55265, 386649), (71055, 300727), (99477, 214805), (128883, 165795)]