17981223

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{733}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 28115136

約数和(自身を除く): 10133913

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 629, 663, 733, 1443, 1887, 2199, 8177, 9529, 12461, 24531, 27121, 28587, 37383, 81363, 161993, 352573, 461057, 485979, 1057719, 1383171, 5993741, 17981223]

約数ペア:

[(1, 17981223), (3, 5993741), (13, 1383171), (17, 1057719), (37, 485979), (39, 461057), (51, 352573), (111, 161993), (221, 81363), (481, 37383), (629, 28587), (663, 27121), (733, 24531), (1443, 12461), (1887, 9529), (2199, 8177)]