20966715

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2017}}^1$

素因数の和:2049

約数の個数: 64

約数和(自身を含む): 46494720

約数和(自身を除く): 25528005

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 2017, 2079, 3465, 6051, 10085, 10395, 14119, 18153, 22187, 30255, 42357, 54459, 66561, 70595, 90765, 110935, 127071, 155309, 199683, 211785, 272295, 332805, 381213, 465927, 599049, 635355, 776545, 998415, 1397781, 1906065, 2329635, 2995245, 4193343, 6988905, 20966715]

約数ペア:

[(1, 20966715), (3, 6988905), (5, 4193343), (7, 2995245), (9, 2329635), (11, 1906065), (15, 1397781), (21, 998415), (27, 776545), (33, 635355), (35, 599049), (45, 465927), (55, 381213), (63, 332805), (77, 272295), (99, 211785), (105, 199683), (135, 155309), (165, 127071), (189, 110935), (231, 90765), (297, 70595), (315, 66561), (385, 54459), (495, 42357), (693, 30255), (945, 22187), (1155, 18153), (1485, 14119), (2017, 10395), (2079, 10085), (3465, 6051)]