21997010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{314243}}^1$

素因数の和:314257

約数の個数: 16

約数和(自身を含む): 45251136

約数和(自身を除く): 23254126

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 314243, 628486, 1571215, 2199701, 3142430, 4399402, 10998505, 21997010]

約数ペア:

[(1, 21997010), (2, 10998505), (5, 4399402), (7, 3142430), (10, 2199701), (14, 1571215), (35, 628486), (70, 314243)]