20456373

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^2$

素因数の和:182

約数の個数: 36

約数和(自身を含む): 33247872

約数和(自身を除く): 12791499

約数列:

[1, 3, 7, 21, 31, 49, 67, 93, 147, 201, 217, 469, 651, 1407, 1519, 2077, 3283, 4489, 4557, 6231, 9849, 13467, 14539, 31423, 43617, 94269, 101773, 139159, 219961, 305319, 417477, 659883, 974113, 2922339, 6818791, 20456373]

約数ペア:

[(1, 20456373), (3, 6818791), (7, 2922339), (21, 974113), (31, 659883), (49, 417477), (67, 305319), (93, 219961), (147, 139159), (201, 101773), (217, 94269), (469, 43617), (651, 31423), (1407, 14539), (1519, 13467), (2077, 9849), (3283, 6231), (4489, 4557)]