21590859

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 10849461

約数列:

[1, 3, 19, 23, 43, 57, 69, 129, 383, 437, 817, 989, 1149, 1311, 2451, 2967, 7277, 8809, 16469, 18791, 21831, 26427, 49407, 56373, 167371, 312911, 378787, 502113, 938733, 1136361, 7196953, 21590859]

約数ペア:

[(1, 21590859), (3, 7196953), (19, 1136361), (23, 938733), (43, 502113), (57, 378787), (69, 312911), (129, 167371), (383, 56373), (437, 49407), (817, 26427), (989, 21831), (1149, 18791), (1311, 16469), (2451, 8809), (2967, 7277)]