21000833036

素因数分解:

$2^2\times {\mathrm{509}}^1\times {\mathrm{607}}^1\times {\mathrm{16993}}^1$

素因数の和:18113

約数の個数: 24

約数和(自身を含む): 36886496640

約数和(自身を除く): 15885663604

約数列:

[1, 2, 4, 509, 607, 1018, 1214, 2036, 2428, 16993, 33986, 67972, 308963, 617926, 1235852, 8649437, 10314751, 17298874, 20629502, 34597748, 41259004, 5250208259, 10500416518, 21000833036]

約数ペア:

[(1, 21000833036), (2, 10500416518), (4, 5250208259), (509, 41259004), (607, 34597748), (1018, 20629502), (1214, 17298874), (2036, 10314751), (2428, 8649437), (16993, 1235852), (33986, 617926), (67972, 308963)]