20998198

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{7841}}^1$

素因数の和:7959

約数の個数: 16

約数和(自身を含む): 34253856

約数和(自身を除く): 13255658

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 7841, 15682, 101933, 203866, 807623, 1615246, 10499099, 20998198]

約数ペア:

[(1, 20998198), (2, 10499099), (13, 1615246), (26, 807623), (103, 203866), (206, 101933), (1339, 15682), (2678, 7841)]