20512142679

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3181657}}^1$

素因数の和:3181974

約数の個数: 16

約数和(自身を含む): 31358421248

約数和(自身を除く): 10846278569

約数列:

[1, 3, 7, 21, 307, 921, 2149, 6447, 3181657, 9544971, 22271599, 66814797, 976768699, 2930306097, 6837380893, 20512142679]

約数ペア:

[(1, 20512142679), (3, 6837380893), (7, 2930306097), (21, 976768699), (307, 66814797), (921, 22271599), (2149, 9544971), (6447, 3181657)]