81443391

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 116981760

約数和(自身を除く): 35538369

約数列:

[1, 3, 23, 67, 69, 79, 201, 223, 237, 669, 1541, 1817, 4623, 5129, 5293, 5451, 14941, 15387, 15879, 17617, 44823, 52851, 121739, 343643, 365217, 405191, 1030929, 1180339, 1215573, 3541017, 27147797, 81443391]

約数ペア:

[(1, 81443391), (3, 27147797), (23, 3541017), (67, 1215573), (69, 1180339), (79, 1030929), (201, 405191), (223, 365217), (237, 343643), (669, 121739), (1541, 52851), (1817, 44823), (4623, 17617), (5129, 15879), (5293, 15387), (5451, 14941)]