18328408

素因数分解:

$2^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2389}}^1$

素因数の和:2539

約数の個数: 32

約数和(自身を含む): 39578400

約数和(自身を除く): 21249992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 137, 274, 548, 959, 1096, 1918, 2389, 3836, 4778, 7672, 9556, 16723, 19112, 33446, 66892, 133784, 327293, 654586, 1309172, 2291051, 2618344, 4582102, 9164204, 18328408]

約数ペア:

[(1, 18328408), (2, 9164204), (4, 4582102), (7, 2618344), (8, 2291051), (14, 1309172), (28, 654586), (56, 327293), (137, 133784), (274, 66892), (548, 33446), (959, 19112), (1096, 16723), (1918, 9556), (2389, 7672), (3836, 4778)]