20987030

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{15319}}^1$

素因数の和:15463

約数の個数: 16

約数和(自身を含む): 38054880

約数和(自身を除く): 17067850

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 15319, 30638, 76595, 153190, 2098703, 4197406, 10493515, 20987030]

約数ペア:

[(1, 20987030), (2, 10493515), (5, 4197406), (10, 2098703), (137, 153190), (274, 76595), (685, 30638), (1370, 15319)]