21970960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24967}}^1$

素因数の和:24991

約数の個数: 40

約数和(自身を含む): 55728576

約数和(自身を除く): 33757616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24967, 49934, 99868, 124835, 199736, 249670, 274637, 399472, 499340, 549274, 998680, 1098548, 1373185, 1997360, 2197096, 2746370, 4394192, 5492740, 10985480, 21970960]

約数ペア:

[(1, 21970960), (2, 10985480), (4, 5492740), (5, 4394192), (8, 2746370), (10, 2197096), (11, 1997360), (16, 1373185), (20, 1098548), (22, 998680), (40, 549274), (44, 499340), (55, 399472), (80, 274637), (88, 249670), (110, 199736), (176, 124835), (220, 99868), (440, 49934), (880, 24967)]