17981505

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21031}}^1$

素因数の和:21061

約数の個数: 24

約数和(自身を含む): 32809920

約数和(自身を除く): 14828415

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 21031, 63093, 105155, 189279, 315465, 399589, 946395, 1198767, 1997945, 3596301, 5993835, 17981505]

約数ペア:

[(1, 17981505), (3, 5993835), (5, 3596301), (9, 1997945), (15, 1198767), (19, 946395), (45, 399589), (57, 315465), (95, 189279), (171, 105155), (285, 63093), (855, 21031)]