18210855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 32062464

約数和(自身を除く): 13851609

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 1987, 3055, 5961, 9165, 9935, 25831, 29805, 77493, 93389, 129155, 280167, 387465, 466945, 1214057, 1400835, 3642171, 6070285, 18210855]

約数ペア:

[(1, 18210855), (3, 6070285), (5, 3642171), (13, 1400835), (15, 1214057), (39, 466945), (47, 387465), (65, 280167), (141, 129155), (195, 93389), (235, 77493), (611, 29805), (705, 25831), (1833, 9935), (1987, 9165), (3055, 5961)]