258723

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 24

約数和(自身を含む): 421200

約数和(自身を除く): 162477

約数列:

[1, 3, 9, 17, 19, 51, 57, 89, 153, 171, 267, 323, 801, 969, 1513, 1691, 2907, 4539, 5073, 13617, 15219, 28747, 86241, 258723]

約数ペア:

[(1, 258723), (3, 86241), (9, 28747), (17, 15219), (19, 13617), (51, 5073), (57, 4539), (89, 2907), (153, 1691), (171, 1513), (267, 969), (323, 801)]