21978962

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{1297}}^1$

素因数の和:1565

約数の個数: 16

約数和(自身を含む): 34033560

約数和(自身を除く): 12054598

約数列:

[1, 2, 37, 74, 229, 458, 1297, 2594, 8473, 16946, 47989, 95978, 297013, 594026, 10989481, 21978962]

約数ペア:

[(1, 21978962), (2, 10989481), (37, 594026), (74, 297013), (229, 95978), (458, 47989), (1297, 16946), (2594, 8473)]