21241449

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7307}}^1$

素因数の和:7349

約数の個数: 24

約数和(自身を含む): 34201440

約数和(自身を除く): 12959991

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7307, 21921, 65763, 124219, 138833, 372657, 416499, 1117971, 1249497, 2360161, 7080483, 21241449]

約数ペア:

[(1, 21241449), (3, 7080483), (9, 2360161), (17, 1249497), (19, 1117971), (51, 416499), (57, 372657), (153, 138833), (171, 124219), (323, 65763), (969, 21921), (2907, 7307)]