20420148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{859}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 54709760

約数和(自身を除く): 34289612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 283, 566, 849, 859, 1132, 1698, 1718, 1981, 2577, 3396, 3436, 3962, 5154, 5943, 6013, 7924, 10308, 11886, 12026, 18039, 23772, 24052, 36078, 72156, 243097, 486194, 729291, 972388, 1458582, 1701679, 2917164, 3403358, 5105037, 6806716, 10210074, 20420148]

約数ペア:

[(1, 20420148), (2, 10210074), (3, 6806716), (4, 5105037), (6, 3403358), (7, 2917164), (12, 1701679), (14, 1458582), (21, 972388), (28, 729291), (42, 486194), (84, 243097), (283, 72156), (566, 36078), (849, 24052), (859, 23772), (1132, 18039), (1698, 12026), (1718, 11886), (1981, 10308), (2577, 7924), (3396, 6013), (3436, 5943), (3962, 5154)]