215416964

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{19379}}^1$

素因数の和:19787

約数の個数: 24

約数和(自身を含む): 431941440

約数和(自身を除く): 216524476

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 2779, 5558, 11116, 19379, 38758, 77516, 135653, 271306, 542612, 7693463, 15386926, 30773852, 53854241, 107708482, 215416964]

約数ペア:

[(1, 215416964), (2, 107708482), (4, 53854241), (7, 30773852), (14, 15386926), (28, 7693463), (397, 542612), (794, 271306), (1588, 135653), (2779, 77516), (5558, 38758), (11116, 19379)]