221381286

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3313}}^1$

素因数の和:3405

約数の個数: 64

約数和(自身を含む): 531936768

約数和(自身を除く): 310555482

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 43, 74, 86, 111, 129, 222, 258, 259, 301, 518, 602, 777, 903, 1554, 1591, 1806, 3182, 3313, 4773, 6626, 9546, 9939, 11137, 19878, 22274, 23191, 33411, 46382, 66822, 69573, 122581, 139146, 142459, 245162, 284918, 367743, 427377, 735486, 854754, 858067, 997213, 1716134, 1994426, 2574201, 2991639, 5148402, 5270983, 5983278, 10541966, 15812949, 31625898, 36896881, 73793762, 110690643, 221381286]

約数ペア:

[(1, 221381286), (2, 110690643), (3, 73793762), (6, 36896881), (7, 31625898), (14, 15812949), (21, 10541966), (37, 5983278), (42, 5270983), (43, 5148402), (74, 2991639), (86, 2574201), (111, 1994426), (129, 1716134), (222, 997213), (258, 858067), (259, 854754), (301, 735486), (518, 427377), (602, 367743), (777, 284918), (903, 245162), (1554, 142459), (1591, 139146), (1806, 122581), (3182, 69573), (3313, 66822), (4773, 46382), (6626, 33411), (9546, 23191), (9939, 22274), (11137, 19878)]