19779755

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2399}}^1$

素因数の和:2518

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 5621845

約数列:

[1, 5, 17, 85, 97, 485, 1649, 2399, 8245, 11995, 40783, 203915, 232703, 1163515, 3955951, 19779755]

約数ペア:

[(1, 19779755), (5, 3955951), (17, 1163515), (85, 232703), (97, 203915), (485, 40783), (1649, 11995), (2399, 8245)]