20601644

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 42932736

約数和(自身を除く): 22331092

約数列:

[1, 2, 4, 7, 14, 28, 43, 71, 86, 142, 172, 241, 284, 301, 482, 497, 602, 964, 994, 1204, 1687, 1988, 3053, 3374, 6106, 6748, 10363, 12212, 17111, 20726, 21371, 34222, 41452, 42742, 68444, 72541, 85484, 119777, 145082, 239554, 290164, 479108, 735773, 1471546, 2943092, 5150411, 10300822, 20601644]

約数ペア:

[(1, 20601644), (2, 10300822), (4, 5150411), (7, 2943092), (14, 1471546), (28, 735773), (43, 479108), (71, 290164), (86, 239554), (142, 145082), (172, 119777), (241, 85484), (284, 72541), (301, 68444), (482, 42742), (497, 41452), (602, 34222), (964, 21371), (994, 20726), (1204, 17111), (1687, 12212), (1988, 10363), (3053, 6748), (3374, 6106)]