20502188

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3607}}^1$

素因数の和:3654

約数の個数: 36

約数和(自身を含む): 43187760

約数和(自身を除く): 22685572

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3607, 5684, 7214, 14428, 25249, 50498, 100996, 104603, 176743, 209206, 353486, 418412, 706972, 732221, 1464442, 2928884, 5125547, 10251094, 20502188]

約数ペア:

[(1, 20502188), (2, 10251094), (4, 5125547), (7, 2928884), (14, 1464442), (28, 732221), (29, 706972), (49, 418412), (58, 353486), (98, 209206), (116, 176743), (196, 104603), (203, 100996), (406, 50498), (812, 25249), (1421, 14428), (2842, 7214), (3607, 5684)]