21131397958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{1688081}}^1$

素因数の和:1688663

約数の個数: 16

約数和(自身を含む): 34639442640

約数和(自身を除く): 13508044682

約数列:

[1, 2, 11, 22, 569, 1138, 6259, 12518, 1688081, 3376162, 18568891, 37137782, 960518089, 1921036178, 10565698979, 21131397958]

約数ペア:

[(1, 21131397958), (2, 10565698979), (11, 1921036178), (22, 960518089), (569, 37137782), (1138, 18568891), (6259, 3376162), (12518, 1688081)]