31281621

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 48964608

約数和(自身を除く): 17682987

約数列:

[1, 3, 7, 21, 83, 131, 137, 249, 393, 411, 581, 917, 959, 1743, 2751, 2877, 10873, 11371, 17947, 32619, 34113, 53841, 76111, 79597, 125629, 228333, 238791, 376887, 1489601, 4468803, 10427207, 31281621]

約数ペア:

[(1, 31281621), (3, 10427207), (7, 4468803), (21, 1489601), (83, 376887), (131, 238791), (137, 228333), (249, 125629), (393, 79597), (411, 76111), (581, 53841), (917, 34113), (959, 32619), (1743, 17947), (2751, 11371), (2877, 10873)]