20911458

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 42773760

約数和(自身を除く): 21862302

約数列:

[1, 2, 3, 6, 79, 157, 158, 237, 281, 314, 471, 474, 562, 843, 942, 1686, 12403, 22199, 24806, 37209, 44117, 44398, 66597, 74418, 88234, 132351, 133194, 264702, 3485243, 6970486, 10455729, 20911458]

約数ペア:

[(1, 20911458), (2, 10455729), (3, 6970486), (6, 3485243), (79, 264702), (157, 133194), (158, 132351), (237, 88234), (281, 74418), (314, 66597), (471, 44398), (474, 44117), (562, 37209), (843, 24806), (942, 22199), (1686, 12403)]