21000979300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{54449}}^1$

素因数の和:54518

約数の個数: 144

約数和(自身を含む): 56715120000

約数和(自身を除く): 35714140700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 29, 35, 38, 50, 58, 70, 76, 95, 100, 116, 133, 140, 145, 175, 190, 203, 266, 290, 350, 380, 406, 475, 532, 551, 580, 665, 700, 725, 812, 950, 1015, 1102, 1330, 1450, 1900, 2030, 2204, 2660, 2755, 2900, 3325, 3857, 4060, 5075, 5510, 6650, 7714, 10150, 11020, 13300, 13775, 15428, 19285, 20300, 27550, 38570, 54449, 55100, 77140, 96425, 108898, 192850, 217796, 272245, 381143, 385700, 544490, 762286, 1034531, 1088980, 1361225, 1524572, 1579021, 1905715, 2069062, 2722450, 3158042, 3811430, 4138124, 5172655, 5444900, 6316084, 7241717, 7622860, 7895105, 9528575, 10345310, 11053147, 14483434, 15790210, 19057150, 20690620, 22106294, 25863275, 28966868, 30001399, 31580420, 36208585, 38114300, 39475525, 44212588, 51726550, 55265735, 60002798, 72417170, 78951050, 103453100, 110531470, 120005596, 144834340, 150006995, 157902100, 181042925, 210009793, 221062940, 276328675, 300013990, 362085850, 420019586, 552657350, 600027980, 724171700, 750034975, 840039172, 1050048965, 1105314700, 1500069950, 2100097930, 3000139900, 4200195860, 5250244825, 10500489650, 21000979300]

約数ペア:

[(1, 21000979300), (2, 10500489650), (4, 5250244825), (5, 4200195860), (7, 3000139900), (10, 2100097930), (14, 1500069950), (19, 1105314700), (20, 1050048965), (25, 840039172), (28, 750034975), (29, 724171700), (35, 600027980), (38, 552657350), (50, 420019586), (58, 362085850), (70, 300013990), (76, 276328675), (95, 221062940), (100, 210009793), (116, 181042925), (133, 157902100), (140, 150006995), (145, 144834340), (175, 120005596), (190, 110531470), (203, 103453100), (266, 78951050), (290, 72417170), (350, 60002798), (380, 55265735), (406, 51726550), (475, 44212588), (532, 39475525), (551, 38114300), (580, 36208585), (665, 31580420), (700, 30001399), (725, 28966868), (812, 25863275), (950, 22106294), (1015, 20690620), (1102, 19057150), (1330, 15790210), (1450, 14483434), (1900, 11053147), (2030, 10345310), (2204, 9528575), (2660, 7895105), (2755, 7622860), (2900, 7241717), (3325, 6316084), (3857, 5444900), (4060, 5172655), (5075, 4138124), (5510, 3811430), (6650, 3158042), (7714, 2722450), (10150, 2069062), (11020, 1905715), (13300, 1579021), (13775, 1524572), (15428, 1361225), (19285, 1088980), (20300, 1034531), (27550, 762286), (38570, 544490), (54449, 385700), (55100, 381143), (77140, 272245), (96425, 217796), (108898, 192850)]