407406591

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{70841}}^1$

素因数の和:70924

約数の個数: 20

約数和(自身を含む): 617175504

約数和(自身を除く): 209768913

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 70841, 212523, 637569, 1912707, 5029711, 5738121, 15089133, 45267399, 135802197, 407406591]

約数ペア:

[(1, 407406591), (3, 135802197), (9, 45267399), (27, 15089133), (71, 5738121), (81, 5029711), (213, 1912707), (639, 637569), (1917, 212523), (5751, 70841)]