2198385

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{997}}^1$

素因数の和:1022

約数の個数: 36

約数和(自身を含む): 4437108

約数和(自身を除く): 2238723

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 997, 2205, 2991, 4985, 6979, 8973, 14955, 20937, 34895, 44865, 48853, 62811, 104685, 146559, 244265, 314055, 439677, 732795, 2198385]

約数ペア:

[(1, 2198385), (3, 732795), (5, 439677), (7, 314055), (9, 244265), (15, 146559), (21, 104685), (35, 62811), (45, 48853), (49, 44865), (63, 34895), (105, 20937), (147, 14955), (245, 8973), (315, 6979), (441, 4985), (735, 2991), (997, 2205)]