21009768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67339}}^1$

素因数の和:67361

約数の個数: 32

約数和(自身を含む): 56565600

約数和(自身を除く): 35555832

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67339, 134678, 202017, 269356, 404034, 538712, 808068, 875407, 1616136, 1750814, 2626221, 3501628, 5252442, 7003256, 10504884, 21009768]

約数ペア:

[(1, 21009768), (2, 10504884), (3, 7003256), (4, 5252442), (6, 3501628), (8, 2626221), (12, 1750814), (13, 1616136), (24, 875407), (26, 808068), (39, 538712), (52, 404034), (78, 269356), (104, 202017), (156, 134678), (312, 67339)]