21418832

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12511}}^1$

素因数の和:12626

約数の個数: 20

約数和(自身を含む): 41890176

約数和(自身を除く): 20471344

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12511, 25022, 50044, 100088, 200176, 1338677, 2677354, 5354708, 10709416, 21418832]

約数ペア:

[(1, 21418832), (2, 10709416), (4, 5354708), (8, 2677354), (16, 1338677), (107, 200176), (214, 100088), (428, 50044), (856, 25022), (1712, 12511)]