239968773

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{220357}}^1$

素因数の和:220385

約数の個数: 18

約数和(自身を含む): 380998982

約数和(自身を除く): 141030209

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 220357, 661071, 1983213, 2423927, 7271781, 21815343, 26663197, 79989591, 239968773]

約数ペア:

[(1, 239968773), (3, 79989591), (9, 26663197), (11, 21815343), (33, 7271781), (99, 2423927), (121, 1983213), (363, 661071), (1089, 220357)]