21031119

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4241}}^1$

素因数の和:4295

約数の個数: 24

約数和(自身を含む): 33087600

約数和(自身を除く): 12056481

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4241, 4959, 12723, 38169, 80579, 122989, 241737, 368967, 725211, 1106901, 2336791, 7010373, 21031119]

約数ペア:

[(1, 21031119), (3, 7010373), (9, 2336791), (19, 1106901), (29, 725211), (57, 368967), (87, 241737), (171, 122989), (261, 80579), (551, 38169), (1653, 12723), (4241, 4959)]