20929713

素因数分解:

$3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{823}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 32689728

約数和(自身を除く): 11760015

約数列:

[1, 3, 7, 21, 49, 147, 173, 519, 823, 1211, 2469, 3633, 5761, 8477, 17283, 25431, 40327, 120981, 142379, 427137, 996653, 2989959, 6976571, 20929713]

約数ペア:

[(1, 20929713), (3, 6976571), (7, 2989959), (21, 996653), (49, 427137), (147, 142379), (173, 120981), (519, 40327), (823, 25431), (1211, 17283), (2469, 8477), (3633, 5761)]