19220978

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 34069248

約数和(自身を除く): 14848270

約数列:

[1, 2, 7, 14, 61, 71, 122, 142, 317, 427, 497, 634, 854, 994, 2219, 4331, 4438, 8662, 19337, 22507, 30317, 38674, 45014, 60634, 135359, 157549, 270718, 315098, 1372927, 2745854, 9610489, 19220978]

約数ペア:

[(1, 19220978), (2, 9610489), (7, 2745854), (14, 1372927), (61, 315098), (71, 270718), (122, 157549), (142, 135359), (317, 60634), (427, 45014), (497, 38674), (634, 30317), (854, 22507), (994, 19337), (2219, 8662), (4331, 4438)]