21129633

素因数分解:

$3^3\times 7^2\times {\mathrm{15971}}^1$

素因数の和:15994

約数の個数: 24

約数和(自身を含む): 36416160

約数和(自身を除く): 15286527

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15971, 47913, 111797, 143739, 335391, 431217, 782579, 1006173, 2347737, 3018519, 7043211, 21129633]

約数ペア:

[(1, 21129633), (3, 7043211), (7, 3018519), (9, 2347737), (21, 1006173), (27, 782579), (49, 431217), (63, 335391), (147, 143739), (189, 111797), (441, 47913), (1323, 15971)]