21185272

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33521}}^1$

素因数の和:33606

約数の個数: 16

約数和(自身を含む): 40226400

約数和(自身を除く): 19041128

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33521, 67042, 134084, 268168, 2648159, 5296318, 10592636, 21185272]

約数ペア:

[(1, 21185272), (2, 10592636), (4, 5296318), (8, 2648159), (79, 268168), (158, 134084), (316, 67042), (632, 33521)]