21725601

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1277}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 29813184

約数和(自身を除く): 8087583

約数列:

[1, 3, 53, 107, 159, 321, 1277, 3831, 5671, 17013, 67681, 136639, 203043, 409917, 7241867, 21725601]

約数ペア:

[(1, 21725601), (3, 7241867), (53, 409917), (107, 203043), (159, 136639), (321, 67681), (1277, 17013), (3831, 5671)]