20829028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 41469120

約数和(自身を除く): 20640092

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 101, 109, 172, 202, 218, 404, 436, 473, 946, 1111, 1199, 1892, 2222, 2398, 4343, 4444, 4687, 4796, 8686, 9374, 11009, 17372, 18748, 22018, 44036, 47773, 51557, 95546, 103114, 121099, 191092, 206228, 242198, 473387, 484396, 946774, 1893548, 5207257, 10414514, 20829028]

約数ペア:

[(1, 20829028), (2, 10414514), (4, 5207257), (11, 1893548), (22, 946774), (43, 484396), (44, 473387), (86, 242198), (101, 206228), (109, 191092), (172, 121099), (202, 103114), (218, 95546), (404, 51557), (436, 47773), (473, 44036), (946, 22018), (1111, 18748), (1199, 17372), (1892, 11009), (2222, 9374), (2398, 8686), (4343, 4796), (4444, 4687)]