21746648

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 52081920

約数和(自身を除く): 30335272

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 56, 77, 86, 88, 154, 172, 301, 308, 344, 473, 602, 616, 821, 946, 1204, 1642, 1892, 2408, 3284, 3311, 3784, 5747, 6568, 6622, 9031, 11494, 13244, 18062, 22988, 26488, 35303, 36124, 45976, 63217, 70606, 72248, 126434, 141212, 247121, 252868, 282424, 388333, 494242, 505736, 776666, 988484, 1553332, 1976968, 2718331, 3106664, 5436662, 10873324, 21746648]

約数ペア:

[(1, 21746648), (2, 10873324), (4, 5436662), (7, 3106664), (8, 2718331), (11, 1976968), (14, 1553332), (22, 988484), (28, 776666), (43, 505736), (44, 494242), (56, 388333), (77, 282424), (86, 252868), (88, 247121), (154, 141212), (172, 126434), (301, 72248), (308, 70606), (344, 63217), (473, 45976), (602, 36124), (616, 35303), (821, 26488), (946, 22988), (1204, 18062), (1642, 13244), (1892, 11494), (2408, 9031), (3284, 6622), (3311, 6568), (3784, 5747)]