21254445

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24859}}^1$

素因数の和:24889

約数の個数: 24

約数和(自身を含む): 38781600

約数和(自身を除く): 17527155

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24859, 74577, 124295, 223731, 372885, 472321, 1118655, 1416963, 2361605, 4250889, 7084815, 21254445]

約数ペア:

[(1, 21254445), (3, 7084815), (5, 4250889), (9, 2361605), (15, 1416963), (19, 1118655), (45, 472321), (57, 372885), (95, 223731), (171, 124295), (285, 74577), (855, 24859)]