209810559

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{1187}}^1$

素因数の和:1659

約数の個数: 32

約数和(自身を含む): 337582080

約数和(自身を除く): 127771521

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 443, 1187, 1329, 3101, 3561, 8309, 8417, 9303, 22553, 24927, 25251, 58919, 67659, 157871, 176757, 473613, 525841, 1577523, 3680887, 9990979, 11042661, 29972937, 69936853, 209810559]

約数ペア:

[(1, 209810559), (3, 69936853), (7, 29972937), (19, 11042661), (21, 9990979), (57, 3680887), (133, 1577523), (399, 525841), (443, 473613), (1187, 176757), (1329, 157871), (3101, 67659), (3561, 58919), (8309, 25251), (8417, 24927), (9303, 22553)]