20212017855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{960419}}^1$

素因数の和:960511

約数の個数: 32

約数和(自身を含む): 34298519040

約数和(自身を除く): 14086501185

約数列:

[1, 3, 5, 15, 23, 61, 69, 115, 183, 305, 345, 915, 1403, 4209, 7015, 21045, 960419, 2881257, 4802095, 14406285, 22089637, 58585559, 66268911, 110448185, 175756677, 292927795, 331344555, 878783385, 1347467857, 4042403571, 6737339285, 20212017855]

約数ペア:

[(1, 20212017855), (3, 6737339285), (5, 4042403571), (15, 1347467857), (23, 878783385), (61, 331344555), (69, 292927795), (115, 175756677), (183, 110448185), (305, 66268911), (345, 58585559), (915, 22089637), (1403, 14406285), (4209, 4802095), (7015, 2881257), (21045, 960419)]