20739153

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1637}}^1$

素因数の和:1784

約数の個数: 16

約数和(自身を含む): 28619136

約数和(自身を除く): 7879983

約数列:

[1, 3, 41, 103, 123, 309, 1637, 4223, 4911, 12669, 67117, 168611, 201351, 505833, 6913051, 20739153]

約数ペア:

[(1, 20739153), (3, 6913051), (41, 505833), (103, 201351), (123, 168611), (309, 67117), (1637, 12669), (4223, 4911)]