21981478

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{10243}}^1$

素因数の和:10311

約数の個数: 16

約数和(自身を含む): 35034480

約数和(自身を除く): 13053002

約数列:

[1, 2, 29, 37, 58, 74, 1073, 2146, 10243, 20486, 297047, 378991, 594094, 757982, 10990739, 21981478]

約数ペア:

[(1, 21981478), (2, 10990739), (29, 757982), (37, 594094), (58, 378991), (74, 297047), (1073, 20486), (2146, 10243)]