20459916

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13217}}^1$

素因数の和:13270

約数の個数: 36

約数和(自身を含む): 52924872

約数和(自身を除く): 32464956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13217, 26434, 39651, 52868, 79302, 118953, 158604, 237906, 475812, 568331, 1136662, 1704993, 2273324, 3409986, 5114979, 6819972, 10229958, 20459916]

約数ペア:

[(1, 20459916), (2, 10229958), (3, 6819972), (4, 5114979), (6, 3409986), (9, 2273324), (12, 1704993), (18, 1136662), (36, 568331), (43, 475812), (86, 237906), (129, 158604), (172, 118953), (258, 79302), (387, 52868), (516, 39651), (774, 26434), (1548, 13217)]