643669684

素因数分解:

$2^2\times 7^4\times {\mathrm{67021}}^1$

素因数の和:67053

約数の個数: 30

約数和(自身を含む): 1314100354

約数和(自身を除く): 670430670

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2401, 4802, 9604, 67021, 134042, 268084, 469147, 938294, 1876588, 3284029, 6568058, 13136116, 22988203, 45976406, 91952812, 160917421, 321834842, 643669684]

約数ペア:

[(1, 643669684), (2, 321834842), (4, 160917421), (7, 91952812), (14, 45976406), (28, 22988203), (49, 13136116), (98, 6568058), (196, 3284029), (343, 1876588), (686, 938294), (1372, 469147), (2401, 268084), (4802, 134042), (9604, 67021)]