21364196

素因数分解:

$2^2\times 7^2\times {\mathrm{109001}}^1$

素因数の和:109019

約数の個数: 18

約数和(自身を含む): 43491798

約数和(自身を除く): 22127602

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 109001, 218002, 436004, 763007, 1526014, 3052028, 5341049, 10682098, 21364196]

約数ペア:

[(1, 21364196), (2, 10682098), (4, 5341049), (7, 3052028), (14, 1526014), (28, 763007), (49, 436004), (98, 218002), (196, 109001)]