2721313

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 3465600

約数和(自身を除く): 744287

約数列:

[1, 7, 19, 37, 49, 79, 133, 259, 553, 703, 931, 1501, 1813, 2923, 3871, 4921, 10507, 20461, 34447, 55537, 73549, 143227, 388759, 2721313]

約数ペア:

[(1, 2721313), (7, 388759), (19, 143227), (37, 73549), (49, 55537), (79, 34447), (133, 20461), (259, 10507), (553, 4921), (703, 3871), (931, 2923), (1501, 1813)]