20461987

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3167}}^1$

素因数の和:3258

約数の個数: 16

約数和(自身を含む): 25546752

約数和(自身を除く): 5084765

約数列:

[1, 7, 13, 71, 91, 497, 923, 3167, 6461, 22169, 41171, 224857, 288197, 1573999, 2923141, 20461987]

約数ペア:

[(1, 20461987), (7, 2923141), (13, 1573999), (71, 288197), (91, 224857), (497, 41171), (923, 22169), (3167, 6461)]