18578938

素因数分解:

$2^1\times 7^4\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 40

約数和(自身を含む): 33578388

約数和(自身を除く): 14999450

約数列:

[1, 2, 7, 14, 49, 53, 73, 98, 106, 146, 343, 371, 511, 686, 742, 1022, 2401, 2597, 3577, 3869, 4802, 5194, 7154, 7738, 18179, 25039, 27083, 36358, 50078, 54166, 127253, 175273, 189581, 254506, 350546, 379162, 1327067, 2654134, 9289469, 18578938]

約数ペア:

[(1, 18578938), (2, 9289469), (7, 2654134), (14, 1327067), (49, 379162), (53, 350546), (73, 254506), (98, 189581), (106, 175273), (146, 127253), (343, 54166), (371, 50078), (511, 36358), (686, 27083), (742, 25039), (1022, 18179), (2401, 7738), (2597, 7154), (3577, 5194), (3869, 4802)]