631687

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 16

約数和(自身を含む): 774144

約数和(自身を除く): 142457

約数列:

[1, 7, 31, 41, 71, 217, 287, 497, 1271, 2201, 2911, 8897, 15407, 20377, 90241, 631687]

約数ペア:

[(1, 631687), (7, 90241), (31, 20377), (41, 15407), (71, 8897), (217, 2911), (287, 2201), (497, 1271)]