19998118

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23417}}^1$

素因数の和:23487

約数の個数: 16

約数和(自身を含む): 34845984

約数和(自身を除く): 14847866

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23417, 46834, 163919, 327838, 1428437, 2856874, 9999059, 19998118]

約数ペア:

[(1, 19998118), (2, 9999059), (7, 2856874), (14, 1428437), (61, 327838), (122, 163919), (427, 46834), (854, 23417)]