18225867

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 29111040

約数和(自身を除く): 10885173

約数列:

[1, 3, 11, 23, 33, 37, 59, 69, 111, 121, 177, 253, 363, 407, 649, 759, 851, 1221, 1357, 1947, 2183, 2553, 2783, 4071, 4477, 6549, 7139, 8349, 9361, 13431, 14927, 21417, 24013, 28083, 44781, 50209, 72039, 102971, 150627, 164197, 264143, 308913, 492591, 552299, 792429, 1656897, 6075289, 18225867]

約数ペア:

[(1, 18225867), (3, 6075289), (11, 1656897), (23, 792429), (33, 552299), (37, 492591), (59, 308913), (69, 264143), (111, 164197), (121, 150627), (177, 102971), (253, 72039), (363, 50209), (407, 44781), (649, 28083), (759, 24013), (851, 21417), (1221, 14927), (1357, 13431), (1947, 9361), (2183, 8349), (2553, 7139), (2783, 6549), (4071, 4477)]