21409058

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{7001}}^1$

素因数の和:7153

約数の個数: 16

約数和(自身を含む): 35290080

約数和(自身を除く): 13881022

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 7001, 14002, 77011, 154022, 973139, 1946278, 10704529, 21409058]

約数ペア:

[(1, 21409058), (2, 10704529), (11, 1946278), (22, 973139), (139, 154022), (278, 77011), (1529, 14002), (3058, 7001)]