2800352009

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{28001}}^1$

素因数の和:28185

約数の個数: 24

約数和(自身を含む): 3530604168

約数和(自身を除く): 730252159

約数列:

[1, 7, 13, 49, 91, 157, 637, 1099, 2041, 7693, 14287, 28001, 100009, 196007, 364013, 1372049, 2548091, 4396157, 17836637, 30773099, 57150041, 215411693, 400050287, 2800352009]

約数ペア:

[(1, 2800352009), (7, 400050287), (13, 215411693), (49, 57150041), (91, 30773099), (157, 17836637), (637, 4396157), (1099, 2548091), (2041, 1372049), (7693, 364013), (14287, 196007), (28001, 100009)]