20697726

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{701}}^1$

素因数の和:769

約数の個数: 64

約数和(自身を含む): 51217920

約数和(自身を除く): 30520194

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 701, 703, 777, 798, 1402, 1406, 1554, 2103, 2109, 4206, 4218, 4907, 4921, 9814, 9842, 13319, 14721, 14763, 25937, 26638, 29442, 29526, 39957, 51874, 77811, 79914, 93233, 155622, 181559, 186466, 279699, 363118, 492803, 544677, 559398, 985606, 1089354, 1478409, 2956818, 3449621, 6899242, 10348863, 20697726]

約数ペア:

[(1, 20697726), (2, 10348863), (3, 6899242), (6, 3449621), (7, 2956818), (14, 1478409), (19, 1089354), (21, 985606), (37, 559398), (38, 544677), (42, 492803), (57, 363118), (74, 279699), (111, 186466), (114, 181559), (133, 155622), (222, 93233), (259, 79914), (266, 77811), (399, 51874), (518, 39957), (701, 29526), (703, 29442), (777, 26638), (798, 25937), (1402, 14763), (1406, 14721), (1554, 13319), (2103, 9842), (2109, 9814), (4206, 4921), (4218, 4907)]