21013221381

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5254619}}^1$

素因数の和:5254696

約数の個数: 16

約数和(自身を含む): 29594019840

約数和(自身を除く): 8580798459

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5254619, 15763857, 162893189, 225948617, 488679567, 677845851, 7004407127, 21013221381]

約数ペア:

[(1, 21013221381), (3, 7004407127), (31, 677845851), (43, 488679567), (93, 225948617), (129, 162893189), (1333, 15763857), (3999, 5254619)]