20519646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 30905634

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 29, 34, 42, 51, 58, 87, 102, 119, 174, 203, 238, 357, 406, 493, 609, 714, 986, 991, 1218, 1479, 1982, 2958, 2973, 3451, 5946, 6902, 6937, 10353, 13874, 16847, 20706, 20811, 28739, 33694, 41622, 50541, 57478, 86217, 101082, 117929, 172434, 201173, 235858, 353787, 402346, 488563, 603519, 707574, 977126, 1207038, 1465689, 2931378, 3419941, 6839882, 10259823, 20519646]

約数ペア:

[(1, 20519646), (2, 10259823), (3, 6839882), (6, 3419941), (7, 2931378), (14, 1465689), (17, 1207038), (21, 977126), (29, 707574), (34, 603519), (42, 488563), (51, 402346), (58, 353787), (87, 235858), (102, 201173), (119, 172434), (174, 117929), (203, 101082), (238, 86217), (357, 57478), (406, 50541), (493, 41622), (609, 33694), (714, 28739), (986, 20811), (991, 20706), (1218, 16847), (1479, 13874), (1982, 10353), (2958, 6937), (2973, 6902), (3451, 5946)]