2657642974

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9991139}}^1$

素因数の和:9991167

約数の個数: 16

約数和(自身を含む): 4795747200

約数和(自身を除く): 2138104226

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 9991139, 19982278, 69937973, 139875946, 189831641, 379663282, 1328821487, 2657642974]

約数ペア:

[(1, 2657642974), (2, 1328821487), (7, 379663282), (14, 189831641), (19, 139875946), (38, 69937973), (133, 19982278), (266, 9991139)]