20763675

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1657

約数の個数: 48

約数和(自身を含む): 40176000

約数和(自身を除く): 19412325

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1425, 1619, 2565, 4275, 4857, 8095, 12825, 14571, 24285, 30761, 40475, 43713, 72855, 92283, 121425, 153805, 218565, 276849, 364275, 461415, 769025, 830547, 1092825, 1384245, 2307075, 4152735, 6921225, 20763675]

約数ペア:

[(1, 20763675), (3, 6921225), (5, 4152735), (9, 2307075), (15, 1384245), (19, 1092825), (25, 830547), (27, 769025), (45, 461415), (57, 364275), (75, 276849), (95, 218565), (135, 153805), (171, 121425), (225, 92283), (285, 72855), (475, 43713), (513, 40475), (675, 30761), (855, 24285), (1425, 14571), (1619, 12825), (2565, 8095), (4275, 4857)]