261212

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 551040

約数和(自身を除く): 289828

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 491, 532, 982, 1964, 3437, 6874, 9329, 13748, 18658, 37316, 65303, 130606, 261212]

約数ペア:

[(1, 261212), (2, 130606), (4, 65303), (7, 37316), (14, 18658), (19, 13748), (28, 9329), (38, 6874), (76, 3437), (133, 1964), (266, 982), (491, 532)]