21957411

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8233}}^1$

素因数の和:8370

約数の個数: 16

約数和(自身を含む): 33726464

約数和(自身を除く): 11769053

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 8233, 24699, 57631, 172893, 1045591, 3136773, 7319137, 21957411]

約数ペア:

[(1, 21957411), (3, 7319137), (7, 3136773), (21, 1045591), (127, 172893), (381, 57631), (889, 24699), (2667, 8233)]