21551061

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1601}}^1$

素因数の和:2252

約数の個数: 16

約数和(自身を含む): 32911488

約数和(自身を除く): 11360427

約数列:

[1, 3, 7, 21, 641, 1601, 1923, 4487, 4803, 11207, 13461, 33621, 1026241, 3078723, 7183687, 21551061]

約数ペア:

[(1, 21551061), (3, 7183687), (7, 3078723), (21, 1026241), (641, 33621), (1601, 13461), (1923, 11207), (4487, 4803)]