21670545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5849}}^1$

素因数の和:5889

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 17641455

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5849, 17547, 29245, 76037, 87735, 111131, 228111, 333393, 380185, 555655, 1140555, 1444703, 1666965, 4334109, 7223515, 21670545]

約数ペア:

[(1, 21670545), (3, 7223515), (5, 4334109), (13, 1666965), (15, 1444703), (19, 1140555), (39, 555655), (57, 380185), (65, 333393), (95, 228111), (195, 111131), (247, 87735), (285, 76037), (741, 29245), (1235, 17547), (3705, 5849)]