21330608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102551}}^1$

素因数の和:102572

約数の個数: 20

約数和(自身を含む): 44507568

約数和(自身を除く): 23176960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102551, 205102, 410204, 820408, 1333163, 1640816, 2666326, 5332652, 10665304, 21330608]

約数ペア:

[(1, 21330608), (2, 10665304), (4, 5332652), (8, 2666326), (13, 1640816), (16, 1333163), (26, 820408), (52, 410204), (104, 205102), (208, 102551)]