21862575

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{661}}^1$

素因数の和:694

約数の個数: 72

約数和(自身を含む): 46790160

約数和(自身を除く): 24927585

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 105, 135, 147, 175, 189, 225, 245, 315, 441, 525, 661, 675, 735, 945, 1225, 1323, 1575, 1983, 2205, 3305, 3675, 4627, 4725, 5949, 6615, 9915, 11025, 13881, 16525, 17847, 23135, 29745, 32389, 33075, 41643, 49575, 69405, 89235, 97167, 115675, 124929, 148725, 161945, 208215, 291501, 347025, 446175, 485835, 624645, 809725, 874503, 1041075, 1457505, 2429175, 3123225, 4372515, 7287525, 21862575]

約数ペア:

[(1, 21862575), (3, 7287525), (5, 4372515), (7, 3123225), (9, 2429175), (15, 1457505), (21, 1041075), (25, 874503), (27, 809725), (35, 624645), (45, 485835), (49, 446175), (63, 347025), (75, 291501), (105, 208215), (135, 161945), (147, 148725), (175, 124929), (189, 115675), (225, 97167), (245, 89235), (315, 69405), (441, 49575), (525, 41643), (661, 33075), (675, 32389), (735, 29745), (945, 23135), (1225, 17847), (1323, 16525), (1575, 13881), (1983, 11025), (2205, 9915), (3305, 6615), (3675, 5949), (4627, 4725)]