21012075

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4447}}^1$

素因数の和:4473

約数の個数: 48

約数和(自身を含む): 44124160

約数和(自身を除く): 23112085

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4447, 4725, 13341, 22235, 31129, 40023, 66705, 93387, 111175, 120069, 155645, 200115, 280161, 333525, 466935, 600345, 778225, 840483, 1000575, 1400805, 2334675, 3001725, 4202415, 7004025, 21012075]

約数ペア:

[(1, 21012075), (3, 7004025), (5, 4202415), (7, 3001725), (9, 2334675), (15, 1400805), (21, 1000575), (25, 840483), (27, 778225), (35, 600345), (45, 466935), (63, 333525), (75, 280161), (105, 200115), (135, 155645), (175, 120069), (189, 111175), (225, 93387), (315, 66705), (525, 40023), (675, 31129), (945, 22235), (1575, 13341), (4447, 4725)]