21487537

素因数分解:

${\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:336

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 1797263

約数列:

[1, 19, 89, 97, 131, 1691, 1843, 2489, 8633, 11659, 12707, 164027, 221521, 241433, 1130923, 21487537]

約数ペア:

[(1, 21487537), (19, 1130923), (89, 241433), (97, 221521), (131, 164027), (1691, 12707), (1843, 11659), (2489, 8633)]