421567209

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{80621}}^1$

素因数の和:80717

約数の個数: 24

約数和(自身を含む): 704313792

約数和(自身を除く): 282746583

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 80621, 241863, 564347, 725589, 1693041, 5079123, 6691543, 20074629, 46840801, 60223887, 140522403, 421567209]

約数ペア:

[(1, 421567209), (3, 140522403), (7, 60223887), (9, 46840801), (21, 20074629), (63, 6691543), (83, 5079123), (249, 1693041), (581, 725589), (747, 564347), (1743, 241863), (5229, 80621)]