20970642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2431

約数の個数: 64

約数和(自身を含む): 55065600

約数和(自身を除く): 34094958

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2389, 2926, 4389, 4778, 7167, 8778, 14334, 16723, 26279, 33446, 45391, 50169, 52558, 78837, 90782, 100338, 136173, 157674, 183953, 272346, 317737, 367906, 499301, 551859, 635474, 953211, 998602, 1103718, 1497903, 1906422, 2995806, 3495107, 6990214, 10485321, 20970642]

約数ペア:

[(1, 20970642), (2, 10485321), (3, 6990214), (6, 3495107), (7, 2995806), (11, 1906422), (14, 1497903), (19, 1103718), (21, 998602), (22, 953211), (33, 635474), (38, 551859), (42, 499301), (57, 367906), (66, 317737), (77, 272346), (114, 183953), (133, 157674), (154, 136173), (209, 100338), (231, 90782), (266, 78837), (399, 52558), (418, 50169), (462, 45391), (627, 33446), (798, 26279), (1254, 16723), (1463, 14334), (2389, 8778), (2926, 7167), (4389, 4778)]