289106391

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{2731}}^1$

素因数の和:2883

約数の個数: 24

約数和(自身を含む): 446998912

約数和(自身を除く): 157892521

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 2731, 5041, 8193, 15123, 19117, 35287, 57351, 105861, 193901, 581703, 1357307, 4071921, 13766971, 41300913, 96368797, 289106391]

約数ペア:

[(1, 289106391), (3, 96368797), (7, 41300913), (21, 13766971), (71, 4071921), (213, 1357307), (497, 581703), (1491, 193901), (2731, 105861), (5041, 57351), (8193, 35287), (15123, 19117)]