20642469

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 28108800

約数和(自身を除く): 7466331

約数列:

[1, 3, 71, 199, 213, 487, 597, 1461, 14129, 34577, 42387, 96913, 103731, 290739, 6880823, 20642469]

約数ペア:

[(1, 20642469), (3, 6880823), (71, 290739), (199, 103731), (213, 96913), (487, 42387), (597, 34577), (1461, 14129)]