19725729

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{839}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 27941760

約数和(自身を除く): 8216031

約数列:

[1, 3, 17, 51, 461, 839, 1383, 2517, 7837, 14263, 23511, 42789, 386779, 1160337, 6575243, 19725729]

約数ペア:

[(1, 19725729), (3, 6575243), (17, 1160337), (51, 386779), (461, 42789), (839, 23511), (1383, 14263), (2517, 7837)]