21428400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2551}}^1$

素因数の和:2579

約数の個数: 120

約数和(自身を含む): 78479104

約数和(自身を除く): 57050704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2551, 2800, 4200, 5102, 7653, 8400, 10204, 12755, 15306, 17857, 20408, 25510, 30612, 35714, 38265, 40816, 51020, 53571, 61224, 63775, 71428, 76530, 89285, 102040, 107142, 122448, 127550, 142856, 153060, 178570, 191325, 204080, 214284, 255100, 267855, 285712, 306120, 357140, 382650, 428568, 446425, 510200, 535710, 612240, 714280, 765300, 857136, 892850, 1020400, 1071420, 1339275, 1428560, 1530600, 1785700, 2142840, 2678550, 3061200, 3571400, 4285680, 5357100, 7142800, 10714200, 21428400]

約数ペア:

[(1, 21428400), (2, 10714200), (3, 7142800), (4, 5357100), (5, 4285680), (6, 3571400), (7, 3061200), (8, 2678550), (10, 2142840), (12, 1785700), (14, 1530600), (15, 1428560), (16, 1339275), (20, 1071420), (21, 1020400), (24, 892850), (25, 857136), (28, 765300), (30, 714280), (35, 612240), (40, 535710), (42, 510200), (48, 446425), (50, 428568), (56, 382650), (60, 357140), (70, 306120), (75, 285712), (80, 267855), (84, 255100), (100, 214284), (105, 204080), (112, 191325), (120, 178570), (140, 153060), (150, 142856), (168, 127550), (175, 122448), (200, 107142), (210, 102040), (240, 89285), (280, 76530), (300, 71428), (336, 63775), (350, 61224), (400, 53571), (420, 51020), (525, 40816), (560, 38265), (600, 35714), (700, 30612), (840, 25510), (1050, 20408), (1200, 17857), (1400, 15306), (1680, 12755), (2100, 10204), (2551, 8400), (2800, 7653), (4200, 5102)]