19716561

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{12377}}^1$

素因数の和:12445

約数の個数: 16

約数和(自身を含む): 29707200

約数和(自身を除く): 9990639

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 12377, 37131, 111393, 334179, 730243, 2190729, 6572187, 19716561]

約数ペア:

[(1, 19716561), (3, 6572187), (9, 2190729), (27, 730243), (59, 334179), (177, 111393), (531, 37131), (1593, 12377)]