21708963

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1607}}^1$

素因数の和:1711

約数の個数: 24

約数和(自身を含む): 33446400

約数和(自身を除く): 11737437

約数列:

[1, 3, 9, 19, 57, 79, 171, 237, 711, 1501, 1607, 4503, 4821, 13509, 14463, 30533, 91599, 126953, 274797, 380859, 1142577, 2412107, 7236321, 21708963]

約数ペア:

[(1, 21708963), (3, 7236321), (9, 2412107), (19, 1142577), (57, 380859), (79, 274797), (171, 126953), (237, 91599), (711, 30533), (1501, 14463), (1607, 13509), (4503, 4821)]