21000279843

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3192017}}^1$

素因数の和:3192083

約数の個数: 24

約数和(自身を含む): 32865017328

約数和(自身を除く): 11864737485

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 6579, 3192017, 9576051, 28728153, 54264289, 137256731, 162792867, 411770193, 488378601, 1235310579, 2333364427, 7000093281, 21000279843]

約数ペア:

[(1, 21000279843), (3, 7000093281), (9, 2333364427), (17, 1235310579), (43, 488378601), (51, 411770193), (129, 162792867), (153, 137256731), (387, 54264289), (731, 28728153), (2193, 9576051), (6579, 3192017)]