31211103

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 53319168

約数和(自身を除く): 22108065

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 121, 173, 213, 231, 363, 497, 519, 781, 847, 1211, 1491, 1903, 2343, 2541, 3633, 5467, 5709, 8591, 12283, 13321, 16401, 20933, 25773, 36849, 39963, 60137, 62799, 85981, 135113, 146531, 180411, 257943, 405339, 439593, 945791, 1486243, 2837373, 4458729, 10403701, 31211103]

約数ペア:

[(1, 31211103), (3, 10403701), (7, 4458729), (11, 2837373), (21, 1486243), (33, 945791), (71, 439593), (77, 405339), (121, 257943), (173, 180411), (213, 146531), (231, 135113), (363, 85981), (497, 62799), (519, 60137), (781, 39963), (847, 36849), (1211, 25773), (1491, 20933), (1903, 16401), (2343, 13321), (2541, 12283), (3633, 8591), (5467, 5709)]