21877047

素因数分解:

$3^5\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 33008976

約数和(自身を除く): 11131929

約数列:

[1, 3, 9, 27, 81, 197, 243, 457, 591, 1371, 1773, 4113, 5319, 12339, 15957, 37017, 47871, 90029, 111051, 270087, 810261, 2430783, 7292349, 21877047]

約数ペア:

[(1, 21877047), (3, 7292349), (9, 2430783), (27, 810261), (81, 270087), (197, 111051), (243, 90029), (457, 47871), (591, 37017), (1371, 15957), (1773, 12339), (4113, 5319)]