21657055

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1123}}^1$

素因数の和:1183

約数の個数: 32

約数和(自身を含む): 32371200

約数和(自身を除く): 10714145

約数列:

[1, 5, 7, 19, 29, 35, 95, 133, 145, 203, 551, 665, 1015, 1123, 2755, 3857, 5615, 7861, 19285, 21337, 32567, 39305, 106685, 149359, 162835, 227969, 618773, 746795, 1139845, 3093865, 4331411, 21657055]

約数ペア:

[(1, 21657055), (5, 4331411), (7, 3093865), (19, 1139845), (29, 746795), (35, 618773), (95, 227969), (133, 162835), (145, 149359), (203, 106685), (551, 39305), (665, 32567), (1015, 21337), (1123, 19285), (2755, 7861), (3857, 5615)]