18810171

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 30156800

約数和(自身を除く): 11346629

約数列:

[1, 3, 9, 19, 27, 37, 57, 111, 171, 333, 513, 703, 991, 999, 2109, 2973, 6327, 8919, 18829, 18981, 26757, 36667, 56487, 110001, 169461, 330003, 508383, 696673, 990009, 2090019, 6270057, 18810171]

約数ペア:

[(1, 18810171), (3, 6270057), (9, 2090019), (19, 990009), (27, 696673), (37, 508383), (57, 330003), (111, 169461), (171, 110001), (333, 56487), (513, 36667), (703, 26757), (991, 18981), (999, 18829), (2109, 8919), (2973, 6327)]