30689109

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{28181}}^1$

素因数の和:28209

約数の個数: 18

約数和(自身を含む): 48726678

約数和(自身を除く): 18037569

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 28181, 84543, 253629, 309991, 929973, 2789919, 3409901, 10229703, 30689109]

約数ペア:

[(1, 30689109), (3, 10229703), (9, 3409901), (11, 2789919), (33, 929973), (99, 309991), (121, 253629), (363, 84543), (1089, 28181)]