21000331778

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{3001}}^1\times {\mathrm{205817}}^1$

素因数の和:208837

約数の個数: 16

約数和(自身を含む): 33364744344

約数和(自身を除く): 12364412566

約数列:

[1, 2, 17, 34, 3001, 6002, 51017, 102034, 205817, 411634, 3498889, 6997778, 617656817, 1235313634, 10500165889, 21000331778]

約数ペア:

[(1, 21000331778), (2, 10500165889), (17, 1235313634), (34, 617656817), (3001, 6997778), (6002, 3498889), (51017, 411634), (102034, 205817)]