21094240

素因数分解:

$2^5\times 5^1\times {\mathrm{131839}}^1$

素因数の和:131854

約数の個数: 24

約数和(自身を含む): 49835520

約数和(自身を除く): 28741280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131839, 263678, 527356, 659195, 1054712, 1318390, 2109424, 2636780, 4218848, 5273560, 10547120, 21094240]

約数ペア:

[(1, 21094240), (2, 10547120), (4, 5273560), (5, 4218848), (8, 2636780), (10, 2109424), (16, 1318390), (20, 1054712), (32, 659195), (40, 527356), (80, 263678), (160, 131839)]