21847655

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 26995584

約数和(自身を除く): 5147929

約数列:

[1, 5, 43, 215, 307, 331, 1535, 1655, 13201, 14233, 66005, 71165, 101617, 508085, 4369531, 21847655]

約数ペア:

[(1, 21847655), (5, 4369531), (43, 508085), (215, 101617), (307, 71165), (331, 66005), (1535, 14233), (1655, 13201)]