19187025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1789}}^1$

素因数の和:1826

約数の個数: 48

約数和(自身を含む): 37289280

約数和(自身を除く): 18102255

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 1789, 2145, 3575, 5367, 8945, 10725, 19679, 23257, 26835, 44725, 59037, 69771, 98395, 116285, 134175, 255827, 295185, 348855, 491975, 581425, 767481, 1279135, 1475925, 1744275, 3837405, 6395675, 19187025]

約数ペア:

[(1, 19187025), (3, 6395675), (5, 3837405), (11, 1744275), (13, 1475925), (15, 1279135), (25, 767481), (33, 581425), (39, 491975), (55, 348855), (65, 295185), (75, 255827), (143, 134175), (165, 116285), (195, 98395), (275, 69771), (325, 59037), (429, 44725), (715, 26835), (825, 23257), (975, 19679), (1789, 10725), (2145, 8945), (3575, 5367)]