21953845

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{547}}^1$

素因数の和:924

約数の個数: 16

約数和(自身を含む): 27619200

約数和(自身を除く): 5665355

約数列:

[1, 5, 23, 115, 349, 547, 1745, 2735, 8027, 12581, 40135, 62905, 190903, 954515, 4390769, 21953845]

約数ペア:

[(1, 21953845), (5, 4390769), (23, 954515), (115, 190903), (349, 62905), (547, 40135), (1745, 12581), (2735, 8027)]