21505454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{2963}}^1$

素因数の和:3175

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 12639826

約数列:

[1, 2, 19, 38, 191, 382, 2963, 3629, 5926, 7258, 56297, 112594, 565933, 1131866, 10752727, 21505454]

約数ペア:

[(1, 21505454), (2, 10752727), (19, 1131866), (38, 565933), (191, 112594), (382, 56297), (2963, 7258), (3629, 5926)]