21744693

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9257}}^1$

素因数の和:9298

約数の個数: 20

約数和(自身を含む): 33606540

約数和(自身を除く): 11861847

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9257, 27771, 83313, 249939, 268453, 749817, 805359, 2416077, 7248231, 21744693]

約数ペア:

[(1, 21744693), (3, 7248231), (9, 2416077), (27, 805359), (29, 749817), (81, 268453), (87, 249939), (261, 83313), (783, 27771), (2349, 9257)]