20425797

素因数分解:

$3^3\times 7^2\times {\mathrm{15439}}^1$

素因数の和:15462

約数の個数: 24

約数和(自身を含む): 35203200

約数和(自身を除く): 14777403

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15439, 46317, 108073, 138951, 324219, 416853, 756511, 972657, 2269533, 2917971, 6808599, 20425797]

約数ペア:

[(1, 20425797), (3, 6808599), (7, 2917971), (9, 2269533), (21, 972657), (27, 756511), (49, 416853), (63, 324219), (147, 138951), (189, 108073), (441, 46317), (1323, 15439)]