315819

素因数分解:

$3^4\times 7^1\times {\mathrm{557}}^1$

素因数の和:576

約数の個数: 20

約数和(自身を含む): 540144

約数和(自身を除く): 224325

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 557, 567, 1671, 3899, 5013, 11697, 15039, 35091, 45117, 105273, 315819]

約数ペア:

[(1, 315819), (3, 105273), (7, 45117), (9, 35091), (21, 15039), (27, 11697), (63, 5013), (81, 3899), (189, 1671), (557, 567)]