19389897

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 29862144

約数和(自身を除く): 10472247

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 1993, 3243, 5979, 9729, 17937, 45839, 93671, 137517, 281013, 412551, 843039, 2154433, 6463299, 19389897]

約数ペア:

[(1, 19389897), (3, 6463299), (9, 2154433), (23, 843039), (47, 412551), (69, 281013), (141, 137517), (207, 93671), (423, 45839), (1081, 17937), (1993, 9729), (3243, 5979)]