18575145

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 34100352

約数和(自身を除く): 15525207

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 131, 137, 207, 345, 393, 411, 655, 685, 1035, 1179, 1233, 1965, 2055, 3013, 3151, 5895, 6165, 9039, 9453, 15065, 15755, 17947, 27117, 28359, 45195, 47265, 53841, 89735, 135585, 141795, 161523, 269205, 412781, 807615, 1238343, 2063905, 3715029, 6191715, 18575145]

約数ペア:

[(1, 18575145), (3, 6191715), (5, 3715029), (9, 2063905), (15, 1238343), (23, 807615), (45, 412781), (69, 269205), (115, 161523), (131, 141795), (137, 135585), (207, 89735), (345, 53841), (393, 47265), (411, 45195), (655, 28359), (685, 27117), (1035, 17947), (1179, 15755), (1233, 15065), (1965, 9453), (2055, 9039), (3013, 6165), (3151, 5895)]