21773080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77761}}^1$

素因数の和:77779

約数の個数: 32

約数和(自身を含む): 55988640

約数和(自身を除く): 34215560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77761, 155522, 311044, 388805, 544327, 622088, 777610, 1088654, 1555220, 2177308, 2721635, 3110440, 4354616, 5443270, 10886540, 21773080]

約数ペア:

[(1, 21773080), (2, 10886540), (4, 5443270), (5, 4354616), (7, 3110440), (8, 2721635), (10, 2177308), (14, 1555220), (20, 1088654), (28, 777610), (35, 622088), (40, 544327), (56, 388805), (70, 311044), (140, 155522), (280, 77761)]