21379382

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{571}}^1$

素因数の和:863

約数の個数: 16

約数和(自身を含む): 32624592

約数和(自身を除く): 11245210

約数列:

[1, 2, 97, 193, 194, 386, 571, 1142, 18721, 37442, 55387, 110203, 110774, 220406, 10689691, 21379382]

約数ペア:

[(1, 21379382), (2, 10689691), (97, 220406), (193, 110774), (194, 110203), (386, 55387), (571, 37442), (1142, 18721)]