18121155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 33815040

約数和(自身を除く): 15693885

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 67, 73, 95, 195, 201, 219, 247, 285, 335, 365, 741, 871, 949, 1005, 1095, 1235, 1273, 1387, 2613, 2847, 3705, 3819, 4161, 4355, 4745, 4891, 6365, 6935, 13065, 14235, 14673, 16549, 18031, 19095, 20805, 24455, 49647, 54093, 63583, 73365, 82745, 90155, 92929, 190749, 248235, 270465, 278787, 317915, 464645, 953745, 1208077, 1393935, 3624231, 6040385, 18121155]

約数ペア:

[(1, 18121155), (3, 6040385), (5, 3624231), (13, 1393935), (15, 1208077), (19, 953745), (39, 464645), (57, 317915), (65, 278787), (67, 270465), (73, 248235), (95, 190749), (195, 92929), (201, 90155), (219, 82745), (247, 73365), (285, 63583), (335, 54093), (365, 49647), (741, 24455), (871, 20805), (949, 19095), (1005, 18031), (1095, 16549), (1235, 14673), (1273, 14235), (1387, 13065), (2613, 6935), (2847, 6365), (3705, 4891), (3819, 4745), (4161, 4355)]