19821555

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1093}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 38228736

約数和(自身を除く): 18407181

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1093, 1209, 1395, 2015, 3279, 3627, 5465, 6045, 9837, 14209, 16395, 18135, 33883, 42627, 49185, 71045, 101649, 127881, 169415, 213135, 304947, 440479, 508245, 639405, 1321437, 1524735, 2202395, 3964311, 6607185, 19821555]

約数ペア:

[(1, 19821555), (3, 6607185), (5, 3964311), (9, 2202395), (13, 1524735), (15, 1321437), (31, 639405), (39, 508245), (45, 440479), (65, 304947), (93, 213135), (117, 169415), (155, 127881), (195, 101649), (279, 71045), (403, 49185), (465, 42627), (585, 33883), (1093, 18135), (1209, 16395), (1395, 14209), (2015, 9837), (3279, 6045), (3627, 5465)]