21133800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 72540000

約数和(自身を除く): 51406200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 59, 60, 72, 75, 90, 100, 118, 120, 150, 177, 180, 199, 200, 225, 236, 295, 300, 354, 360, 398, 450, 472, 531, 590, 597, 600, 708, 796, 885, 900, 995, 1062, 1180, 1194, 1416, 1475, 1592, 1770, 1791, 1800, 1990, 2124, 2360, 2388, 2655, 2950, 2985, 3540, 3582, 3980, 4248, 4425, 4776, 4975, 5310, 5900, 5970, 7080, 7164, 7960, 8850, 8955, 9950, 10620, 11741, 11800, 11940, 13275, 14328, 14925, 17700, 17910, 19900, 21240, 23482, 23880, 26550, 29850, 35223, 35400, 35820, 39800, 44775, 46964, 53100, 58705, 59700, 70446, 71640, 89550, 93928, 105669, 106200, 117410, 119400, 140892, 176115, 179100, 211338, 234820, 281784, 293525, 352230, 358200, 422676, 469640, 528345, 587050, 704460, 845352, 880575, 1056690, 1174100, 1408920, 1761150, 2113380, 2348200, 2641725, 3522300, 4226760, 5283450, 7044600, 10566900, 21133800]

約数ペア:

[(1, 21133800), (2, 10566900), (3, 7044600), (4, 5283450), (5, 4226760), (6, 3522300), (8, 2641725), (9, 2348200), (10, 2113380), (12, 1761150), (15, 1408920), (18, 1174100), (20, 1056690), (24, 880575), (25, 845352), (30, 704460), (36, 587050), (40, 528345), (45, 469640), (50, 422676), (59, 358200), (60, 352230), (72, 293525), (75, 281784), (90, 234820), (100, 211338), (118, 179100), (120, 176115), (150, 140892), (177, 119400), (180, 117410), (199, 106200), (200, 105669), (225, 93928), (236, 89550), (295, 71640), (300, 70446), (354, 59700), (360, 58705), (398, 53100), (450, 46964), (472, 44775), (531, 39800), (590, 35820), (597, 35400), (600, 35223), (708, 29850), (796, 26550), (885, 23880), (900, 23482), (995, 21240), (1062, 19900), (1180, 17910), (1194, 17700), (1416, 14925), (1475, 14328), (1592, 13275), (1770, 11940), (1791, 11800), (1800, 11741), (1990, 10620), (2124, 9950), (2360, 8955), (2388, 8850), (2655, 7960), (2950, 7164), (2985, 7080), (3540, 5970), (3582, 5900), (3980, 5310), (4248, 4975), (4425, 4776)]