21127743

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8599}}^1$

素因数の和:8628

約数の個数: 32

約数和(自身を含む): 38528000

約数和(自身を除く): 17400257

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8599, 25797, 60193, 77391, 111787, 180579, 232173, 335361, 541737, 782509, 1006083, 1625211, 2347527, 3018249, 7042581, 21127743]

約数ペア:

[(1, 21127743), (3, 7042581), (7, 3018249), (9, 2347527), (13, 1625211), (21, 1006083), (27, 782509), (39, 541737), (63, 335361), (91, 232173), (117, 180579), (189, 111787), (273, 77391), (351, 60193), (819, 25797), (2457, 8599)]