20828038

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^2$

素因数の和:305

約数の個数: 36

約数和(自身を含む): 39933972

約数和(自身を除く): 19105934

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 139, 154, 278, 539, 973, 1078, 1529, 1946, 3058, 6811, 10703, 13622, 19321, 21406, 38642, 74921, 135247, 149842, 212531, 270494, 425062, 946729, 1487717, 1893458, 2975434, 10414019, 20828038]

約数ペア:

[(1, 20828038), (2, 10414019), (7, 2975434), (11, 1893458), (14, 1487717), (22, 946729), (49, 425062), (77, 270494), (98, 212531), (139, 149842), (154, 135247), (278, 74921), (539, 38642), (973, 21406), (1078, 19321), (1529, 13622), (1946, 10703), (3058, 6811)]