18685264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89833}}^1$

素因数の和:89854

約数の個数: 20

約数和(自身を含む): 38987956

約数和(自身を除く): 20302692

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89833, 179666, 359332, 718664, 1167829, 1437328, 2335658, 4671316, 9342632, 18685264]

約数ペア:

[(1, 18685264), (2, 9342632), (4, 4671316), (8, 2335658), (13, 1437328), (16, 1167829), (26, 718664), (52, 359332), (104, 179666), (208, 89833)]