21241642

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:813

約数の個数: 16

約数和(自身を含む): 32401152

約数和(自身を除く): 11159510

約数列:

[1, 2, 97, 194, 223, 446, 491, 982, 21631, 43262, 47627, 95254, 109493, 218986, 10620821, 21241642]

約数ペア:

[(1, 21241642), (2, 10620821), (97, 218986), (194, 109493), (223, 95254), (446, 47627), (491, 43262), (982, 21631)]