20731425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1933}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 40289088

約数和(自身を除く): 19557663

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 1933, 2145, 3575, 5799, 9665, 10725, 21263, 25129, 28995, 48325, 63789, 75387, 106315, 125645, 144975, 276419, 318945, 376935, 531575, 628225, 829257, 1382095, 1594725, 1884675, 4146285, 6910475, 20731425]

約数ペア:

[(1, 20731425), (3, 6910475), (5, 4146285), (11, 1884675), (13, 1594725), (15, 1382095), (25, 829257), (33, 628225), (39, 531575), (55, 376935), (65, 318945), (75, 276419), (143, 144975), (165, 125645), (195, 106315), (275, 75387), (325, 63789), (429, 48325), (715, 28995), (825, 25129), (975, 21263), (1933, 10725), (2145, 9665), (3575, 5799)]