248779923

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1\times {\mathrm{1021}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 390093312

約数和(自身を除く): 141313389

約数列:

[1, 3, 7, 21, 41, 123, 283, 287, 849, 861, 1021, 1981, 3063, 5943, 7147, 11603, 21441, 34809, 41861, 81221, 125583, 243663, 288943, 293027, 866829, 879081, 2022601, 6067803, 11846663, 35539989, 82926641, 248779923]

約数ペア:

[(1, 248779923), (3, 82926641), (7, 35539989), (21, 11846663), (41, 6067803), (123, 2022601), (283, 879081), (287, 866829), (849, 293027), (861, 288943), (1021, 243663), (1981, 125583), (3063, 81221), (5943, 41861), (7147, 34809), (11603, 21441)]