20647011

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89381}}^1$

素因数の和:89402

約数の個数: 16

約数和(自身を含む): 34322688

約数和(自身を除く): 13675677

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89381, 268143, 625667, 983191, 1877001, 2949573, 6882337, 20647011]

約数ペア:

[(1, 20647011), (3, 6882337), (7, 2949573), (11, 1877001), (21, 983191), (33, 625667), (77, 268143), (231, 89381)]