21503880

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6637}}^1$

素因数の和:6660

約数の個数: 80

約数和(自身を含む): 72287820

約数和(自身を除く): 50783940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6637, 13274, 19911, 26548, 33185, 39822, 53096, 59733, 66370, 79644, 99555, 119466, 132740, 159288, 179199, 199110, 238932, 265480, 298665, 358398, 398220, 477864, 537597, 597330, 716796, 796440, 895995, 1075194, 1194660, 1433592, 1791990, 2150388, 2389320, 2687985, 3583980, 4300776, 5375970, 7167960, 10751940, 21503880]

約数ペア:

[(1, 21503880), (2, 10751940), (3, 7167960), (4, 5375970), (5, 4300776), (6, 3583980), (8, 2687985), (9, 2389320), (10, 2150388), (12, 1791990), (15, 1433592), (18, 1194660), (20, 1075194), (24, 895995), (27, 796440), (30, 716796), (36, 597330), (40, 537597), (45, 477864), (54, 398220), (60, 358398), (72, 298665), (81, 265480), (90, 238932), (108, 199110), (120, 179199), (135, 159288), (162, 132740), (180, 119466), (216, 99555), (270, 79644), (324, 66370), (360, 59733), (405, 53096), (540, 39822), (648, 33185), (810, 26548), (1080, 19911), (1620, 13274), (3240, 6637)]