21644623

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3089}}^1$

素因数の和:3127

約数の個数: 24

約数和(自身を含む): 29589840

約数和(自身を除く): 7945217

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 3089, 7007, 21623, 33979, 40157, 151361, 237853, 281099, 441727, 1664971, 1967693, 3092089, 21644623]

約数ペア:

[(1, 21644623), (7, 3092089), (11, 1967693), (13, 1664971), (49, 441727), (77, 281099), (91, 237853), (143, 151361), (539, 40157), (637, 33979), (1001, 21623), (3089, 7007)]