20916616

素因数分解:

$2^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1201}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 45002880

約数和(自身を除く): 24086264

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 311, 622, 1201, 1244, 2177, 2402, 2488, 4354, 4804, 8407, 8708, 9608, 16814, 17416, 33628, 67256, 373511, 747022, 1494044, 2614577, 2988088, 5229154, 10458308, 20916616]

約数ペア:

[(1, 20916616), (2, 10458308), (4, 5229154), (7, 2988088), (8, 2614577), (14, 1494044), (28, 747022), (56, 373511), (311, 67256), (622, 33628), (1201, 17416), (1244, 16814), (2177, 9608), (2402, 8708), (2488, 8407), (4354, 4804)]