19784107

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 24880608

約数和(自身を除く): 5096501

約数列:

[1, 7, 17, 31, 119, 173, 217, 527, 961, 1211, 2941, 3689, 5363, 6727, 16337, 20587, 37541, 91171, 114359, 166253, 638197, 1163771, 2826301, 19784107]

約数ペア:

[(1, 19784107), (7, 2826301), (17, 1163771), (31, 638197), (119, 166253), (173, 114359), (217, 91171), (527, 37541), (961, 20587), (1211, 16337), (2941, 6727), (3689, 5363)]