21296295

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16319}}^1$

素因数の和:16359

約数の個数: 24

約数和(自身を含む): 38188800

約数和(自身を除く): 16892505

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16319, 48957, 81595, 146871, 244785, 473251, 734355, 1419753, 2366255, 4259259, 7098765, 21296295]

約数ペア:

[(1, 21296295), (3, 7098765), (5, 4259259), (9, 2366255), (15, 1419753), (29, 734355), (45, 473251), (87, 244785), (145, 146871), (261, 81595), (435, 48957), (1305, 16319)]