21369621

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78277}}^1$

素因数の和:78300

約数の個数: 16

約数和(自身を含む): 35068544

約数和(自身を除く): 13698923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78277, 234831, 547939, 1017601, 1643817, 3052803, 7123207, 21369621]

約数ペア:

[(1, 21369621), (3, 7123207), (7, 3052803), (13, 1643817), (21, 1017601), (39, 547939), (91, 234831), (273, 78277)]