20845812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 55544160

約数和(自身を除く): 34698348

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 169, 228, 247, 338, 494, 507, 541, 676, 741, 988, 1014, 1082, 1482, 1623, 2028, 2164, 2964, 3211, 3246, 6422, 6492, 7033, 9633, 10279, 12844, 14066, 19266, 20558, 21099, 28132, 30837, 38532, 41116, 42198, 61674, 84396, 91429, 123348, 133627, 182858, 267254, 274287, 365716, 400881, 534508, 548574, 801762, 1097148, 1603524, 1737151, 3474302, 5211453, 6948604, 10422906, 20845812]

約数ペア:

[(1, 20845812), (2, 10422906), (3, 6948604), (4, 5211453), (6, 3474302), (12, 1737151), (13, 1603524), (19, 1097148), (26, 801762), (38, 548574), (39, 534508), (52, 400881), (57, 365716), (76, 274287), (78, 267254), (114, 182858), (156, 133627), (169, 123348), (228, 91429), (247, 84396), (338, 61674), (494, 42198), (507, 41116), (541, 38532), (676, 30837), (741, 28132), (988, 21099), (1014, 20558), (1082, 19266), (1482, 14066), (1623, 12844), (2028, 10279), (2164, 9633), (2964, 7033), (3211, 6492), (3246, 6422)]