21026250

素因数分解:

$2^1\times 3^3\times 5^4\times 7^1\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 160

約数和(自身を含む): 67478400

約数和(自身を除く): 46452150

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 89, 90, 105, 125, 126, 135, 150, 175, 178, 189, 210, 225, 250, 267, 270, 315, 350, 375, 378, 445, 450, 525, 534, 623, 625, 630, 675, 750, 801, 875, 890, 945, 1050, 1125, 1246, 1250, 1335, 1350, 1575, 1602, 1750, 1869, 1875, 1890, 2225, 2250, 2403, 2625, 2670, 3115, 3150, 3375, 3738, 3750, 4005, 4375, 4450, 4725, 4806, 5250, 5607, 5625, 6230, 6675, 6750, 7875, 8010, 8750, 9345, 9450, 11125, 11214, 11250, 12015, 13125, 13350, 15575, 15750, 16821, 16875, 18690, 20025, 22250, 23625, 24030, 26250, 28035, 31150, 33375, 33642, 33750, 39375, 40050, 46725, 47250, 55625, 56070, 60075, 66750, 77875, 78750, 84105, 93450, 100125, 111250, 118125, 120150, 140175, 155750, 166875, 168210, 200250, 233625, 236250, 280350, 300375, 333750, 389375, 420525, 467250, 500625, 600750, 700875, 778750, 841050, 1001250, 1168125, 1401750, 1501875, 2102625, 2336250, 3003750, 3504375, 4205250, 7008750, 10513125, 21026250]

約数ペア:

[(1, 21026250), (2, 10513125), (3, 7008750), (5, 4205250), (6, 3504375), (7, 3003750), (9, 2336250), (10, 2102625), (14, 1501875), (15, 1401750), (18, 1168125), (21, 1001250), (25, 841050), (27, 778750), (30, 700875), (35, 600750), (42, 500625), (45, 467250), (50, 420525), (54, 389375), (63, 333750), (70, 300375), (75, 280350), (89, 236250), (90, 233625), (105, 200250), (125, 168210), (126, 166875), (135, 155750), (150, 140175), (175, 120150), (178, 118125), (189, 111250), (210, 100125), (225, 93450), (250, 84105), (267, 78750), (270, 77875), (315, 66750), (350, 60075), (375, 56070), (378, 55625), (445, 47250), (450, 46725), (525, 40050), (534, 39375), (623, 33750), (625, 33642), (630, 33375), (675, 31150), (750, 28035), (801, 26250), (875, 24030), (890, 23625), (945, 22250), (1050, 20025), (1125, 18690), (1246, 16875), (1250, 16821), (1335, 15750), (1350, 15575), (1575, 13350), (1602, 13125), (1750, 12015), (1869, 11250), (1875, 11214), (1890, 11125), (2225, 9450), (2250, 9345), (2403, 8750), (2625, 8010), (2670, 7875), (3115, 6750), (3150, 6675), (3375, 6230), (3738, 5625), (3750, 5607), (4005, 5250), (4375, 4806), (4450, 4725)]