218972168

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{636547}}^1$

素因数の和:636596

約数の個数: 16

約数和(自身を含む): 420121680

約数和(自身を除く): 201149512

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 636547, 1273094, 2546188, 5092376, 27371521, 54743042, 109486084, 218972168]

約数ペア:

[(1, 218972168), (2, 109486084), (4, 54743042), (8, 27371521), (43, 5092376), (86, 2546188), (172, 1273094), (344, 636547)]