21403085

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2081}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 29905848

約数和(自身を除く): 8502763

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2057, 2081, 10285, 10405, 22891, 35377, 114455, 176885, 251801, 389147, 1259005, 1945735, 4280617, 21403085]

約数ペア:

[(1, 21403085), (5, 4280617), (11, 1945735), (17, 1259005), (55, 389147), (85, 251801), (121, 176885), (187, 114455), (605, 35377), (935, 22891), (2057, 10405), (2081, 10285)]