18885295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 27123264

約数和(自身を除く): 8237969

約数列:

[1, 5, 11, 13, 55, 61, 65, 143, 305, 433, 671, 715, 793, 2165, 3355, 3965, 4763, 5629, 8723, 23815, 26413, 28145, 43615, 61919, 132065, 290543, 309595, 343369, 1452715, 1716845, 3777059, 18885295]

約数ペア:

[(1, 18885295), (5, 3777059), (11, 1716845), (13, 1452715), (55, 343369), (61, 309595), (65, 290543), (143, 132065), (305, 61919), (433, 43615), (671, 28145), (715, 26413), (793, 23815), (2165, 8723), (3355, 5629), (3965, 4763)]