21330297

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 11167623

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1439, 1647, 4317, 4941, 12951, 14823, 38853, 87779, 116559, 263337, 349677, 790011, 2370033, 7110099, 21330297]

約数ペア:

[(1, 21330297), (3, 7110099), (9, 2370033), (27, 790011), (61, 349677), (81, 263337), (183, 116559), (243, 87779), (549, 38853), (1439, 14823), (1647, 12951), (4317, 4941)]