18707913

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15629}}^1$

素因数の和:15661

約数の個数: 24

約数和(自身を含む): 32510400

約数和(自身を除く): 13802487

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15629, 46887, 109403, 140661, 296951, 328209, 890853, 984627, 2078657, 2672559, 6235971, 18707913]

約数ペア:

[(1, 18707913), (3, 6235971), (7, 2672559), (9, 2078657), (19, 984627), (21, 890853), (57, 328209), (63, 296951), (133, 140661), (171, 109403), (399, 46887), (1197, 15629)]