81606903

素因数分解:

$3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{1117}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 128793600

約数和(自身を除く): 47186697

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 343, 497, 1029, 1117, 1491, 3351, 3479, 7819, 10437, 23457, 24353, 54733, 73059, 79307, 164199, 237921, 383131, 555149, 1149393, 1665447, 3886043, 11658129, 27202301, 81606903]

約数ペア:

[(1, 81606903), (3, 27202301), (7, 11658129), (21, 3886043), (49, 1665447), (71, 1149393), (147, 555149), (213, 383131), (343, 237921), (497, 164199), (1029, 79307), (1117, 73059), (1491, 54733), (3351, 24353), (3479, 23457), (7819, 10437)]