7215873

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 11523072

約数和(自身を除く): 4307199

約数列:

[1, 3, 7, 21, 43, 61, 129, 131, 183, 301, 393, 427, 903, 917, 1281, 2623, 2751, 5633, 7869, 7991, 16899, 18361, 23973, 39431, 55083, 55937, 118293, 167811, 343613, 1030839, 2405291, 7215873]

約数ペア:

[(1, 7215873), (3, 2405291), (7, 1030839), (21, 343613), (43, 167811), (61, 118293), (129, 55937), (131, 55083), (183, 39431), (301, 23973), (393, 18361), (427, 16899), (903, 7991), (917, 7869), (1281, 5633), (2623, 2751)]