19356921

素因数分解:

$3^3\times {\mathrm{359}}^1\times {\mathrm{1997}}^1$

素因数の和:2365

約数の個数: 16

約数和(自身を含む): 28771200

約数和(自身を除く): 9414279

約数列:

[1, 3, 9, 27, 359, 1077, 1997, 3231, 5991, 9693, 17973, 53919, 716923, 2150769, 6452307, 19356921]

約数ペア:

[(1, 19356921), (3, 6452307), (9, 2150769), (27, 716923), (359, 53919), (1077, 17973), (1997, 9693), (3231, 5991)]