20188035

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7121}}^1$

素因数の和:7145

約数の個数: 40

約数和(自身を含む): 41364576

約数和(自身を除く): 21176541

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7121, 21363, 35605, 49847, 64089, 106815, 149541, 192267, 249235, 320445, 448623, 576801, 747705, 961335, 1345869, 2243115, 2884005, 4037607, 6729345, 20188035]

約数ペア:

[(1, 20188035), (3, 6729345), (5, 4037607), (7, 2884005), (9, 2243115), (15, 1345869), (21, 961335), (27, 747705), (35, 576801), (45, 448623), (63, 320445), (81, 249235), (105, 192267), (135, 149541), (189, 106815), (315, 64089), (405, 49847), (567, 35605), (945, 21363), (2835, 7121)]