20954773

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 24499584

約数和(自身を除く): 3544811

約数列:

[1, 7, 101, 107, 277, 707, 749, 1939, 10807, 27977, 29639, 75649, 195839, 207473, 2993539, 20954773]

約数ペア:

[(1, 20954773), (7, 2993539), (101, 207473), (107, 195839), (277, 75649), (707, 29639), (749, 27977), (1939, 10807)]