400191

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 16

約数和(自身を含む): 594048

約数和(自身を除く): 193857

約数列:

[1, 3, 11, 33, 67, 181, 201, 543, 737, 1991, 2211, 5973, 12127, 36381, 133397, 400191]

約数ペア:

[(1, 400191), (3, 133397), (11, 36381), (33, 12127), (67, 5973), (181, 2211), (201, 1991), (543, 737)]