20700999

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 32807424

約数和(自身を除く): 12106425

約数列:

[1, 3, 9, 11, 33, 99, 211, 633, 991, 1899, 2321, 2973, 6963, 8919, 10901, 20889, 32703, 98109, 209101, 627303, 1881909, 2300111, 6900333, 20700999]

約数ペア:

[(1, 20700999), (3, 6900333), (9, 2300111), (11, 1881909), (33, 627303), (99, 209101), (211, 98109), (633, 32703), (991, 20889), (1899, 10901), (2321, 8919), (2973, 6963)]