21137800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6217}}^1$

素因数の和:6250

約数の個数: 48

約数和(自身を含む): 52044660

約数和(自身を除く): 30906860

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 6217, 12434, 24868, 31085, 49736, 62170, 105689, 124340, 155425, 211378, 248680, 310850, 422756, 528445, 621700, 845512, 1056890, 1243400, 2113780, 2642225, 4227560, 5284450, 10568900, 21137800]

約数ペア:

[(1, 21137800), (2, 10568900), (4, 5284450), (5, 4227560), (8, 2642225), (10, 2113780), (17, 1243400), (20, 1056890), (25, 845512), (34, 621700), (40, 528445), (50, 422756), (68, 310850), (85, 248680), (100, 211378), (136, 155425), (170, 124340), (200, 105689), (340, 62170), (425, 49736), (680, 31085), (850, 24868), (1700, 12434), (3400, 6217)]