20185515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64081}}^1$

素因数の和:64099

約数の個数: 24

約数和(自身を含む): 39987168

約数和(自身を除く): 19801653

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64081, 192243, 320405, 448567, 576729, 961215, 1345701, 2242835, 2883645, 4037103, 6728505, 20185515]

約数ペア:

[(1, 20185515), (3, 6728505), (5, 4037103), (7, 2883645), (9, 2242835), (15, 1345701), (21, 961215), (35, 576729), (45, 448567), (63, 320405), (105, 192243), (315, 64081)]