261521183

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28541}}^1$

素因数の和:28583

約数の個数: 24

約数和(自身を含む): 351409104

約数和(自身を除く): 89887921

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 9163, 28541, 199787, 313951, 485197, 1398509, 2197657, 3396379, 5337167, 15383599, 23774653, 37360169, 261521183]

約数ペア:

[(1, 261521183), (7, 37360169), (11, 23774653), (17, 15383599), (49, 5337167), (77, 3396379), (119, 2197657), (187, 1398509), (539, 485197), (833, 313951), (1309, 199787), (9163, 28541)]