21918843

素因数分解:

$3^6\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:406

約数の個数: 28

約数和(自身を含む): 33288408

約数和(自身を除く): 11369565

約数列:

[1, 3, 9, 27, 81, 107, 243, 281, 321, 729, 843, 963, 2529, 2889, 7587, 8667, 22761, 26001, 30067, 68283, 78003, 90201, 204849, 270603, 811809, 2435427, 7306281, 21918843]

約数ペア:

[(1, 21918843), (3, 7306281), (9, 2435427), (27, 811809), (81, 270603), (107, 204849), (243, 90201), (281, 78003), (321, 68283), (729, 30067), (843, 26001), (963, 22761), (2529, 8667), (2889, 7587)]