289327899

素因数分解:

$3^1\times 7^2\times {\mathrm{971}}^1\times {\mathrm{2027}}^1$

素因数の和:3015

約数の個数: 24

約数和(自身を含む): 449437248

約数和(自身を除く): 160109349

約数列:

[1, 3, 7, 21, 49, 147, 971, 2027, 2913, 6081, 6797, 14189, 20391, 42567, 47579, 99323, 142737, 297969, 1968217, 5904651, 13777519, 41332557, 96442633, 289327899]

約数ペア:

[(1, 289327899), (3, 96442633), (7, 41332557), (21, 13777519), (49, 5904651), (147, 1968217), (971, 297969), (2027, 142737), (2913, 99323), (6081, 47579), (6797, 42567), (14189, 20391)]