21811148

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{733}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 39336528

約数和(自身を除く): 17525380

約数列:

[1, 2, 4, 43, 86, 172, 173, 346, 692, 733, 1466, 2932, 7439, 14878, 29756, 31519, 63038, 126076, 126809, 253618, 507236, 5452787, 10905574, 21811148]

約数ペア:

[(1, 21811148), (2, 10905574), (4, 5452787), (43, 507236), (86, 253618), (172, 126809), (173, 126076), (346, 63038), (692, 31519), (733, 29756), (1466, 14878), (2932, 7439)]