18953181

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{733}}^1$

素因数の和:782

約数の個数: 36

約数和(自身を含む): 31431348

約数和(自身を除く): 12478167

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 507, 663, 733, 1521, 1989, 2199, 2873, 6597, 8619, 9529, 12461, 25857, 28587, 37383, 85761, 112149, 123877, 161993, 371631, 485979, 1114893, 1457937, 2105909, 6317727, 18953181]

約数ペア:

[(1, 18953181), (3, 6317727), (9, 2105909), (13, 1457937), (17, 1114893), (39, 485979), (51, 371631), (117, 161993), (153, 123877), (169, 112149), (221, 85761), (507, 37383), (663, 28587), (733, 25857), (1521, 12461), (1989, 9529), (2199, 8619), (2873, 6597)]