19959165

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6247}}^1$

素因数の和:6329

約数の個数: 24

約数和(自身を含む): 35088768

約数和(自身を除く): 15129603

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6247, 18741, 31235, 56223, 93705, 281115, 443537, 1330611, 2217685, 3991833, 6653055, 19959165]

約数ペア:

[(1, 19959165), (3, 6653055), (5, 3991833), (9, 2217685), (15, 1330611), (45, 443537), (71, 281115), (213, 93705), (355, 56223), (639, 31235), (1065, 18741), (3195, 6247)]