21459116

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7901}}^1$

素因数の和:8009

約数の個数: 24

約数和(自身を含む): 43366176

約数和(自身を除く): 21907060

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7901, 15802, 31604, 55307, 110614, 221228, 766397, 1532794, 3065588, 5364779, 10729558, 21459116]

約数ペア:

[(1, 21459116), (2, 10729558), (4, 5364779), (7, 3065588), (14, 1532794), (28, 766397), (97, 221228), (194, 110614), (388, 55307), (679, 31604), (1358, 15802), (2716, 7901)]