1971004021

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{720133}}^1$

素因数の和:720180

約数の個数: 16

約数和(自身を含む): 2488783104

約数和(自身を除く): 517779083

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 720133, 5040931, 12242261, 16563059, 85695827, 115941413, 281572003, 1971004021]

約数ペア:

[(1, 1971004021), (7, 281572003), (17, 115941413), (23, 85695827), (119, 16563059), (161, 12242261), (391, 5040931), (2737, 720133)]