21077560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75277}}^1$

素因数の和:75295

約数の個数: 32

約数和(自身を含む): 54200160

約数和(自身を除く): 33122600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75277, 150554, 301108, 376385, 526939, 602216, 752770, 1053878, 1505540, 2107756, 2634695, 3011080, 4215512, 5269390, 10538780, 21077560]

約数ペア:

[(1, 21077560), (2, 10538780), (4, 5269390), (5, 4215512), (7, 3011080), (8, 2634695), (10, 2107756), (14, 1505540), (20, 1053878), (28, 752770), (35, 602216), (40, 526939), (56, 376385), (70, 301108), (140, 150554), (280, 75277)]