19561641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{433}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 29310624

約数和(自身を除く): 9748983

約数列:

[1, 3, 11, 33, 37, 111, 407, 433, 1221, 1299, 1369, 4107, 4763, 14289, 15059, 16021, 45177, 48063, 176231, 528693, 592777, 1778331, 6520547, 19561641]

約数ペア:

[(1, 19561641), (3, 6520547), (11, 1778331), (33, 592777), (37, 528693), (111, 176231), (407, 48063), (433, 45177), (1221, 16021), (1299, 15059), (1369, 14289), (4107, 4763)]