15280503

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5471}}^1$

素因数の和:5507

約数の個数: 24

約数和(自身を含む): 24952320

約数和(自身を除く): 9671817

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 5471, 16413, 38297, 103949, 114891, 268079, 311847, 727643, 804237, 2182929, 5093501, 15280503]

約数ペア:

[(1, 15280503), (3, 5093501), (7, 2182929), (19, 804237), (21, 727643), (49, 311847), (57, 268079), (133, 114891), (147, 103949), (399, 38297), (931, 16413), (2793, 5471)]