15895901

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 20018880

約数和(自身を除く): 4122979

約数列:

[1, 7, 17, 31, 119, 139, 217, 527, 961, 973, 2363, 3689, 4309, 6727, 16337, 16541, 30163, 73253, 114359, 133579, 512771, 935053, 2270843, 15895901]

約数ペア:

[(1, 15895901), (7, 2270843), (17, 935053), (31, 512771), (119, 133579), (139, 114359), (217, 73253), (527, 30163), (961, 16541), (973, 16337), (2363, 6727), (3689, 4309)]