3988257

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2087}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 6664896

約数和(自身を除く): 2676639

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 2087, 6261, 14609, 27131, 43827, 81393, 102263, 189917, 306789, 569751, 1329419, 3988257]

約数ペア:

[(1, 3988257), (3, 1329419), (7, 569751), (13, 306789), (21, 189917), (39, 102263), (49, 81393), (91, 43827), (147, 27131), (273, 14609), (637, 6261), (1911, 2087)]