21675131115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{519227}}^1$

素因数の和:519280

約数の個数: 48

約数和(自身を含む): 39777018624

約数和(自身を除く): 18101887509

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 121, 165, 253, 345, 363, 605, 759, 1265, 1815, 2783, 3795, 8349, 13915, 41745, 519227, 1557681, 2596135, 5711497, 7788405, 11942221, 17134491, 28557485, 35826663, 59711105, 62826467, 85672455, 131364431, 179133315, 188479401, 314132335, 394093293, 656822155, 942397005, 1445008741, 1970466465, 4335026223, 7225043705, 21675131115]

約数ペア:

[(1, 21675131115), (3, 7225043705), (5, 4335026223), (11, 1970466465), (15, 1445008741), (23, 942397005), (33, 656822155), (55, 394093293), (69, 314132335), (115, 188479401), (121, 179133315), (165, 131364431), (253, 85672455), (345, 62826467), (363, 59711105), (605, 35826663), (759, 28557485), (1265, 17134491), (1815, 11942221), (2783, 7788405), (3795, 5711497), (8349, 2596135), (13915, 1557681), (41745, 519227)]