20371743

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 38410240

約数和(自身を除く): 18038497

約数列:

[1, 3, 7, 9, 19, 21, 27, 31, 57, 61, 63, 81, 93, 133, 171, 183, 189, 217, 279, 399, 427, 513, 549, 567, 589, 651, 837, 1159, 1197, 1281, 1539, 1647, 1767, 1891, 1953, 2511, 3477, 3591, 3843, 4123, 4941, 5301, 5673, 5859, 8113, 10431, 10773, 11529, 12369, 13237, 15903, 17019, 17577, 24339, 31293, 34587, 35929, 37107, 39711, 47709, 51057, 73017, 93879, 107787, 111321, 119133, 153171, 219051, 251503, 323361, 333963, 357399, 657153, 754509, 970083, 1072197, 2263527, 2910249, 6790581, 20371743]

約数ペア:

[(1, 20371743), (3, 6790581), (7, 2910249), (9, 2263527), (19, 1072197), (21, 970083), (27, 754509), (31, 657153), (57, 357399), (61, 333963), (63, 323361), (81, 251503), (93, 219051), (133, 153171), (171, 119133), (183, 111321), (189, 107787), (217, 93879), (279, 73017), (399, 51057), (427, 47709), (513, 39711), (549, 37107), (567, 35929), (589, 34587), (651, 31293), (837, 24339), (1159, 17577), (1197, 17019), (1281, 15903), (1539, 13237), (1647, 12369), (1767, 11529), (1891, 10773), (1953, 10431), (2511, 8113), (3477, 5859), (3591, 5673), (3843, 5301), (4123, 4941)]