20429253

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 13815867

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 223, 243, 261, 351, 377, 669, 783, 1053, 1131, 2007, 2349, 2899, 3159, 3393, 6021, 6467, 7047, 8697, 10179, 18063, 19401, 26091, 30537, 54189, 58203, 78273, 84071, 91611, 174609, 234819, 252213, 523827, 704457, 756639, 1571481, 2269917, 6809751, 20429253]

約数ペア:

[(1, 20429253), (3, 6809751), (9, 2269917), (13, 1571481), (27, 756639), (29, 704457), (39, 523827), (81, 252213), (87, 234819), (117, 174609), (223, 91611), (243, 84071), (261, 78273), (351, 58203), (377, 54189), (669, 30537), (783, 26091), (1053, 19401), (1131, 18063), (2007, 10179), (2349, 8697), (2899, 7047), (3159, 6467), (3393, 6021)]