18674397

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15601}}^1$

素因数の和:15633

約数の個数: 24

約数和(自身を含む): 32452160

約数和(自身を除く): 13777763

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15601, 46803, 109207, 140409, 296419, 327621, 889257, 982863, 2074933, 2667771, 6224799, 18674397]

約数ペア:

[(1, 18674397), (3, 6224799), (7, 2667771), (9, 2074933), (19, 982863), (21, 889257), (57, 327621), (63, 296419), (133, 140409), (171, 109207), (399, 46803), (1197, 15601)]