21050250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 60383232

約数和(自身を除く): 39332982

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 25, 26, 30, 34, 39, 50, 51, 65, 75, 78, 85, 102, 125, 127, 130, 150, 170, 195, 221, 250, 254, 255, 325, 375, 381, 390, 425, 442, 510, 635, 650, 663, 750, 762, 850, 975, 1105, 1270, 1275, 1326, 1625, 1651, 1905, 1950, 2125, 2159, 2210, 2550, 3175, 3250, 3302, 3315, 3810, 4250, 4318, 4875, 4953, 5525, 6350, 6375, 6477, 6630, 8255, 9525, 9750, 9906, 10795, 11050, 12750, 12954, 15875, 16510, 16575, 19050, 21590, 24765, 27625, 28067, 31750, 32385, 33150, 41275, 47625, 49530, 53975, 55250, 56134, 64770, 82550, 82875, 84201, 95250, 107950, 123825, 140335, 161925, 165750, 168402, 206375, 247650, 269875, 280670, 323850, 412750, 421005, 539750, 619125, 701675, 809625, 842010, 1238250, 1403350, 1619250, 2105025, 3508375, 4210050, 7016750, 10525125, 21050250]

約数ペア:

[(1, 21050250), (2, 10525125), (3, 7016750), (5, 4210050), (6, 3508375), (10, 2105025), (13, 1619250), (15, 1403350), (17, 1238250), (25, 842010), (26, 809625), (30, 701675), (34, 619125), (39, 539750), (50, 421005), (51, 412750), (65, 323850), (75, 280670), (78, 269875), (85, 247650), (102, 206375), (125, 168402), (127, 165750), (130, 161925), (150, 140335), (170, 123825), (195, 107950), (221, 95250), (250, 84201), (254, 82875), (255, 82550), (325, 64770), (375, 56134), (381, 55250), (390, 53975), (425, 49530), (442, 47625), (510, 41275), (635, 33150), (650, 32385), (663, 31750), (750, 28067), (762, 27625), (850, 24765), (975, 21590), (1105, 19050), (1270, 16575), (1275, 16510), (1326, 15875), (1625, 12954), (1651, 12750), (1905, 11050), (1950, 10795), (2125, 9906), (2159, 9750), (2210, 9525), (2550, 8255), (3175, 6630), (3250, 6477), (3302, 6375), (3315, 6350), (3810, 5525), (4250, 4953), (4318, 4875)]