209499219

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{7793}}^1$

素因数の和:7931

約数の個数: 24

約数和(自身を含む): 316124640

約数和(自身を除く): 106625421

約数列:

[1, 3, 9, 29, 87, 103, 261, 309, 927, 2987, 7793, 8961, 23379, 26883, 70137, 225997, 677991, 802679, 2033973, 2408037, 7224111, 23277691, 69833073, 209499219]

約数ペア:

[(1, 209499219), (3, 69833073), (9, 23277691), (29, 7224111), (87, 2408037), (103, 2033973), (261, 802679), (309, 677991), (927, 225997), (2987, 70137), (7793, 26883), (8961, 23379)]