20890035

素因数分解:

$3^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 37340160

約数和(自身を除く): 16450125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 271, 571, 813, 1355, 1713, 2439, 2855, 4065, 5139, 7317, 8565, 12195, 15417, 25695, 36585, 77085, 154741, 464223, 773705, 1392669, 2321115, 4178007, 6963345, 20890035]

約数ペア:

[(1, 20890035), (3, 6963345), (5, 4178007), (9, 2321115), (15, 1392669), (27, 773705), (45, 464223), (135, 154741), (271, 77085), (571, 36585), (813, 25695), (1355, 15417), (1713, 12195), (2439, 8565), (2855, 7317), (4065, 5139)]