20409929

素因数分解:

${\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 21695040

約数和(自身を除く): 1285111

約数列:

[1, 53, 59, 61, 107, 3127, 3233, 3599, 5671, 6313, 6527, 190747, 334589, 345931, 385093, 20409929]

約数ペア:

[(1, 20409929), (53, 385093), (59, 345931), (61, 334589), (107, 190747), (3127, 6527), (3233, 6313), (3599, 5671)]