20603715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 36205056

約数和(自身を除く): 15601341

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 193, 579, 647, 965, 1941, 2123, 2895, 3235, 6369, 7117, 9705, 10615, 21351, 31845, 35585, 106755, 124871, 374613, 624355, 1373581, 1873065, 4120743, 6867905, 20603715]

約数ペア:

[(1, 20603715), (3, 6867905), (5, 4120743), (11, 1873065), (15, 1373581), (33, 624355), (55, 374613), (165, 124871), (193, 106755), (579, 35585), (647, 31845), (965, 21351), (1941, 10615), (2123, 9705), (2895, 7117), (3235, 6369)]