211247981

素因数分解:

$7^1\times {\mathrm{31}}^3\times {\mathrm{1013}}^1$

素因数の和:1113

約数の個数: 16

約数和(自身を含む): 249719808

約数和(自身を除く): 38471827

約数列:

[1, 7, 31, 217, 961, 1013, 6727, 7091, 29791, 31403, 208537, 219821, 973493, 6814451, 30178283, 211247981]

約数ペア:

[(1, 211247981), (7, 30178283), (31, 6814451), (217, 973493), (961, 219821), (1013, 208537), (6727, 31403), (7091, 29791)]