28918215

素因数分解:

$3^5\times 5^1\times {\mathrm{23801}}^1$

素因数の和:23821

約数の個数: 24

約数和(自身を含む): 51983568

約数和(自身を除く): 23065353

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 23801, 71403, 119005, 214209, 357015, 642627, 1071045, 1927881, 3213135, 5783643, 9639405, 28918215]

約数ペア:

[(1, 28918215), (3, 9639405), (5, 5783643), (9, 3213135), (15, 1927881), (27, 1071045), (45, 642627), (81, 357015), (135, 214209), (243, 119005), (405, 71403), (1215, 23801)]