215422209

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{54773}}^1$

素因数の和:54821

約数の個数: 24

約数和(自身を含む): 341789760

約数和(自身を除く): 126367551

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 54773, 164319, 492957, 1040687, 1259779, 3122061, 3779337, 9366183, 11338011, 23935801, 71807403, 215422209]

約数ペア:

[(1, 215422209), (3, 71807403), (9, 23935801), (19, 11338011), (23, 9366183), (57, 3779337), (69, 3122061), (171, 1259779), (207, 1040687), (437, 492957), (1311, 164319), (3933, 54773)]