18842538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21961}}^1$

素因数の和:21990

約数の個数: 32

約数和(自身を含む): 44275392

約数和(自身を除く): 25432854

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858, 21961, 43922, 65883, 131766, 241571, 285493, 483142, 570986, 724713, 856479, 1449426, 1712958, 3140423, 6280846, 9421269, 18842538]

約数ペア:

[(1, 18842538), (2, 9421269), (3, 6280846), (6, 3140423), (11, 1712958), (13, 1449426), (22, 856479), (26, 724713), (33, 570986), (39, 483142), (66, 285493), (78, 241571), (143, 131766), (286, 65883), (429, 43922), (858, 21961)]