20631830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47981}}^1$

素因数の和:48031

約数の個数: 16

約数和(自身を含む): 38001744

約数和(自身を除く): 17369914

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47981, 95962, 239905, 479810, 2063183, 4126366, 10315915, 20631830]

約数ペア:

[(1, 20631830), (2, 10315915), (5, 4126366), (10, 2063183), (43, 479810), (86, 239905), (215, 95962), (430, 47981)]