19821375

素因数分解:

$3^3\times 5^3\times 7^1\times {\mathrm{839}}^1$

素因数の和:870

約数の個数: 64

約数和(自身を含む): 41932800

約数和(自身を除く): 22111425

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 189, 225, 315, 375, 525, 675, 839, 875, 945, 1125, 1575, 2517, 2625, 3375, 4195, 4725, 5873, 7551, 7875, 12585, 17619, 20975, 22653, 23625, 29365, 37755, 52857, 62925, 88095, 104875, 113265, 146825, 158571, 188775, 264285, 314625, 440475, 566325, 734125, 792855, 943875, 1321425, 2202375, 2831625, 3964275, 6607125, 19821375]

約数ペア:

[(1, 19821375), (3, 6607125), (5, 3964275), (7, 2831625), (9, 2202375), (15, 1321425), (21, 943875), (25, 792855), (27, 734125), (35, 566325), (45, 440475), (63, 314625), (75, 264285), (105, 188775), (125, 158571), (135, 146825), (175, 113265), (189, 104875), (225, 88095), (315, 62925), (375, 52857), (525, 37755), (675, 29365), (839, 23625), (875, 22653), (945, 20975), (1125, 17619), (1575, 12585), (2517, 7875), (2625, 7551), (3375, 5873), (4195, 4725)]