19427751

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2729}}^1$

素因数の和:2855

約数の個数: 24

約数和(自身を含む): 32366880

約数和(自身を除く): 12939129

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 2729, 7119, 8187, 19103, 24561, 57309, 171927, 308377, 925131, 2158639, 2775393, 6475917, 19427751]

約数ペア:

[(1, 19427751), (3, 6475917), (7, 2775393), (9, 2158639), (21, 925131), (63, 308377), (113, 171927), (339, 57309), (791, 24561), (1017, 19103), (2373, 8187), (2729, 7119)]