123780213

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{5153}}^1$

素因数の和:5333

約数の個数: 24

約数和(自身を含む): 190553688

約数和(自身を除く): 66773475

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 1413, 2669, 5153, 8007, 15459, 24021, 46377, 87601, 262803, 788409, 809021, 2427063, 7281189, 13753357, 41260071, 123780213]

約数ペア:

[(1, 123780213), (3, 41260071), (9, 13753357), (17, 7281189), (51, 2427063), (153, 809021), (157, 788409), (471, 262803), (1413, 87601), (2669, 46377), (5153, 24021), (8007, 15459)]