128513217

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{359981}}^1$

素因数の和:360008

約数の個数: 16

約数和(自身を含む): 207349632

約数和(自身を除く): 78836415

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 359981, 1079943, 2519867, 6119677, 7559601, 18359031, 42837739, 128513217]

約数ペア:

[(1, 128513217), (3, 42837739), (7, 18359031), (17, 7559601), (21, 6119677), (51, 2519867), (119, 1079943), (357, 359981)]