187898697

素因数分解:

$3^4\times 7^1\times {\mathrm{331391}}^1$

素因数の和:331410

約数の個数: 20

約数和(自身を含む): 320787456

約数和(自身を除く): 132888759

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 331391, 994173, 2319737, 2982519, 6959211, 8947557, 20877633, 26842671, 62632899, 187898697]

約数ペア:

[(1, 187898697), (3, 62632899), (7, 26842671), (9, 20877633), (21, 8947557), (27, 6959211), (63, 2982519), (81, 2319737), (189, 994173), (567, 331391)]