21565503

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2389}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 33555600

約数和(自身を除く): 11990097

約数列:

[1, 3, 9, 17, 51, 59, 153, 177, 531, 1003, 2389, 3009, 7167, 9027, 21501, 40613, 121839, 140951, 365517, 422853, 1268559, 2396167, 7188501, 21565503]

約数ペア:

[(1, 21565503), (3, 7188501), (9, 2396167), (17, 1268559), (51, 422853), (59, 365517), (153, 140951), (177, 121839), (531, 40613), (1003, 21501), (2389, 9027), (3009, 7167)]