21251714

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:802

約数の個数: 24

約数和(自身を含む): 35349804

約数和(自身を除く): 14098090

約数列:

[1, 2, 11, 22, 121, 137, 242, 274, 641, 1282, 1507, 3014, 7051, 14102, 16577, 33154, 77561, 87817, 155122, 175634, 965987, 1931974, 10625857, 21251714]

約数ペア:

[(1, 21251714), (2, 10625857), (11, 1931974), (22, 965987), (121, 175634), (137, 155122), (242, 87817), (274, 77561), (641, 33154), (1282, 16577), (1507, 14102), (3014, 7051)]