21352863

素因数分解:

$3^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{1787}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 32613120

約数和(自身を除く): 11260257

約数列:

[1, 3, 7, 21, 569, 1707, 1787, 3983, 5361, 11949, 12509, 37527, 1016803, 3050409, 7117621, 21352863]

約数ペア:

[(1, 21352863), (3, 7117621), (7, 3050409), (21, 1016803), (569, 37527), (1707, 12509), (1787, 11949), (3983, 5361)]