21561966

素因数分解:

$2^1\times 3^2\times {\mathrm{163}}^1\times {\mathrm{7349}}^1$

素因数の和:7520

約数の個数: 24

約数和(自身を含む): 47010600

約数和(自身を除く): 25448634

約数列:

[1, 2, 3, 6, 9, 18, 163, 326, 489, 978, 1467, 2934, 7349, 14698, 22047, 44094, 66141, 132282, 1197887, 2395774, 3593661, 7187322, 10780983, 21561966]

約数ペア:

[(1, 21561966), (2, 10780983), (3, 7187322), (6, 3593661), (9, 2395774), (18, 1197887), (163, 132282), (326, 66141), (489, 44094), (978, 22047), (1467, 14698), (2934, 7349)]