20992785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2707}}^1$

素因数の和:2773

約数の個数: 32

約数和(自身を含む): 37435392

約数和(自身を除く): 16442607

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2707, 7755, 8121, 13535, 29777, 40605, 89331, 127229, 148885, 381687, 446655, 636145, 1399519, 1908435, 4198557, 6997595, 20992785]

約数ペア:

[(1, 20992785), (3, 6997595), (5, 4198557), (11, 1908435), (15, 1399519), (33, 636145), (47, 446655), (55, 381687), (141, 148885), (165, 127229), (235, 89331), (517, 40605), (705, 29777), (1551, 13535), (2585, 8121), (2707, 7755)]