2159217

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 40

約数和(自身を含む): 3600960

約数和(自身を除く): 1441743

約数列:

[1, 3, 9, 19, 23, 27, 57, 61, 69, 81, 171, 183, 207, 437, 513, 549, 621, 1159, 1311, 1403, 1539, 1647, 1863, 3477, 3933, 4209, 4941, 10431, 11799, 12627, 26657, 31293, 35397, 37881, 79971, 93879, 113643, 239913, 719739, 2159217]

約数ペア:

[(1, 2159217), (3, 719739), (9, 239913), (19, 113643), (23, 93879), (27, 79971), (57, 37881), (61, 35397), (69, 31293), (81, 26657), (171, 12627), (183, 11799), (207, 10431), (437, 4941), (513, 4209), (549, 3933), (621, 3477), (1159, 1863), (1311, 1647), (1403, 1539)]