13420816

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{19507}}^1$

素因数の和:19558

約数の個数: 20

約数和(自身を含む): 26608912

約数和(自身を除く): 13188096

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 19507, 39014, 78028, 156056, 312112, 838801, 1677602, 3355204, 6710408, 13420816]

約数ペア:

[(1, 13420816), (2, 6710408), (4, 3355204), (8, 1677602), (16, 838801), (43, 312112), (86, 156056), (172, 78028), (344, 39014), (688, 19507)]