21375135

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4703}}^1$

素因数の和:4815

約数の個数: 24

約数和(自身を含む): 37425024

約数和(自身を除く): 16049889

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4545, 4703, 14109, 23515, 42327, 70545, 211635, 475003, 1425009, 2375015, 4275027, 7125045, 21375135]

約数ペア:

[(1, 21375135), (3, 7125045), (5, 4275027), (9, 2375015), (15, 1425009), (45, 475003), (101, 211635), (303, 70545), (505, 42327), (909, 23515), (1515, 14109), (4545, 4703)]