421456

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 964224

約数和(自身を除く): 542768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 71, 106, 112, 142, 212, 284, 371, 424, 497, 568, 742, 848, 994, 1136, 1484, 1988, 2968, 3763, 3976, 5936, 7526, 7952, 15052, 26341, 30104, 52682, 60208, 105364, 210728, 421456]

約数ペア:

[(1, 421456), (2, 210728), (4, 105364), (7, 60208), (8, 52682), (14, 30104), (16, 26341), (28, 15052), (53, 7952), (56, 7526), (71, 5936), (106, 3976), (112, 3763), (142, 2968), (212, 1988), (284, 1484), (371, 1136), (424, 994), (497, 848), (568, 742)]