19965404

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 35574000

約数和(自身を除く): 15608596

約数列:

[1, 2, 4, 139, 149, 241, 278, 298, 482, 556, 596, 964, 20711, 33499, 35909, 41422, 66998, 71818, 82844, 133996, 143636, 4991351, 9982702, 19965404]

約数ペア:

[(1, 19965404), (2, 9982702), (4, 4991351), (139, 143636), (149, 133996), (241, 82844), (278, 71818), (298, 66998), (482, 41422), (556, 35909), (596, 33499), (964, 20711)]