21368445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10711}}^1$

素因数の和:10745

約数の個数: 32

約数和(自身を含む): 41134080

約数和(自身を除く): 19765635

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10711, 32133, 53555, 74977, 160665, 203509, 224931, 374885, 610527, 1017545, 1124655, 1424563, 3052635, 4273689, 7122815, 21368445]

約数ペア:

[(1, 21368445), (3, 7122815), (5, 4273689), (7, 3052635), (15, 1424563), (19, 1124655), (21, 1017545), (35, 610527), (57, 374885), (95, 224931), (105, 203509), (133, 160665), (285, 74977), (399, 53555), (665, 32133), (1995, 10711)]