18386907

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 31715712

約数和(自身を除く): 13328805

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 83, 137, 147, 231, 249, 411, 539, 581, 913, 959, 1507, 1617, 1743, 2739, 2877, 4067, 4521, 6391, 6713, 10549, 11371, 12201, 19173, 20139, 31647, 34113, 44737, 73843, 79597, 125081, 134211, 221529, 238791, 375243, 557179, 875567, 1671537, 2626701, 6128969, 18386907]

約数ペア:

[(1, 18386907), (3, 6128969), (7, 2626701), (11, 1671537), (21, 875567), (33, 557179), (49, 375243), (77, 238791), (83, 221529), (137, 134211), (147, 125081), (231, 79597), (249, 73843), (411, 44737), (539, 34113), (581, 31647), (913, 20139), (959, 19173), (1507, 12201), (1617, 11371), (1743, 10549), (2739, 6713), (2877, 6391), (4067, 4521)]