21003180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{263}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 64931328

約数和(自身を除く): 43928148

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 263, 330, 363, 484, 526, 605, 660, 726, 789, 1052, 1210, 1315, 1331, 1452, 1578, 1815, 2420, 2630, 2662, 2893, 3156, 3630, 3945, 3993, 5260, 5324, 5786, 6655, 7260, 7890, 7986, 8679, 11572, 13310, 14465, 15780, 15972, 17358, 19965, 26620, 28930, 31823, 34716, 39930, 43395, 57860, 63646, 79860, 86790, 95469, 127292, 159115, 173580, 190938, 318230, 350053, 381876, 477345, 636460, 700106, 954690, 1050159, 1400212, 1750265, 1909380, 2100318, 3500530, 4200636, 5250795, 7001060, 10501590, 21003180]

約数ペア:

[(1, 21003180), (2, 10501590), (3, 7001060), (4, 5250795), (5, 4200636), (6, 3500530), (10, 2100318), (11, 1909380), (12, 1750265), (15, 1400212), (20, 1050159), (22, 954690), (30, 700106), (33, 636460), (44, 477345), (55, 381876), (60, 350053), (66, 318230), (110, 190938), (121, 173580), (132, 159115), (165, 127292), (220, 95469), (242, 86790), (263, 79860), (330, 63646), (363, 57860), (484, 43395), (526, 39930), (605, 34716), (660, 31823), (726, 28930), (789, 26620), (1052, 19965), (1210, 17358), (1315, 15972), (1331, 15780), (1452, 14465), (1578, 13310), (1815, 11572), (2420, 8679), (2630, 7986), (2662, 7890), (2893, 7260), (3156, 6655), (3630, 5786), (3945, 5324), (3993, 5260)]