21820342

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{997}}^1$

素因数の和:1383

約数の個数: 16

約数和(自身を含む): 33916032

約数和(自身を除く): 12095690

約数列:

[1, 2, 31, 62, 353, 706, 997, 1994, 10943, 21886, 30907, 61814, 351941, 703882, 10910171, 21820342]

約数ペア:

[(1, 21820342), (2, 10910171), (31, 703882), (62, 351941), (353, 61814), (706, 30907), (997, 21886), (1994, 10943)]