81027882

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20369}}^1$

素因数の和:20407

約数の個数: 48

約数和(自身を含む): 200196360

約数和(自身を除く): 119168478

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 20369, 40738, 61107, 122214, 183321, 264797, 346273, 366642, 529594, 692546, 794391, 1038819, 1588782, 2077638, 2383173, 3116457, 4501549, 4766346, 6232914, 9003098, 13504647, 27009294, 40513941, 81027882]

約数ペア:

[(1, 81027882), (2, 40513941), (3, 27009294), (6, 13504647), (9, 9003098), (13, 6232914), (17, 4766346), (18, 4501549), (26, 3116457), (34, 2383173), (39, 2077638), (51, 1588782), (78, 1038819), (102, 794391), (117, 692546), (153, 529594), (221, 366642), (234, 346273), (306, 264797), (442, 183321), (663, 122214), (1326, 61107), (1989, 40738), (3978, 20369)]