21451610

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52321}}^1$

素因数の和:52369

約数の個数: 16

約数和(自身を含む): 39555432

約数和(自身を除く): 18103822

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52321, 104642, 261605, 523210, 2145161, 4290322, 10725805, 21451610]

約数ペア:

[(1, 21451610), (2, 10725805), (5, 4290322), (10, 2145161), (41, 523210), (82, 261605), (205, 104642), (410, 52321)]