21575678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5209}}^1$

素因数の和:5339

約数の個数: 16

約数和(自身を含む): 34386000

約数和(自身を除く): 12810322

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5209, 10418, 98971, 197942, 567781, 1135562, 10787839, 21575678]

約数ペア:

[(1, 21575678), (2, 10787839), (19, 1135562), (38, 567781), (109, 197942), (218, 98971), (2071, 10418), (4142, 5209)]