208590921

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{300997}}^1$

素因数の和:301021

約数の個数: 24

約数和(自身を含む): 375645504

約数和(自身を除く): 167054583

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 300997, 902991, 2106979, 2708973, 3310967, 6320937, 9932901, 18962811, 23176769, 29798703, 69530307, 208590921]

約数ペア:

[(1, 208590921), (3, 69530307), (7, 29798703), (9, 23176769), (11, 18962811), (21, 9932901), (33, 6320937), (63, 3310967), (77, 2708973), (99, 2106979), (231, 902991), (693, 300997)]