21262670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14869}}^1$

素因数の和:14900

約数の個数: 32

約数和(自身を含む): 44966880

約数和(自身を除く): 23704210

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14869, 29738, 74345, 148690, 163559, 193297, 327118, 386594, 817795, 966485, 1635590, 1932970, 2126267, 4252534, 10631335, 21262670]

約数ペア:

[(1, 21262670), (2, 10631335), (5, 4252534), (10, 2126267), (11, 1932970), (13, 1635590), (22, 966485), (26, 817795), (55, 386594), (65, 327118), (110, 193297), (130, 163559), (143, 148690), (286, 74345), (715, 29738), (1430, 14869)]