21404250

素因数分解:

$2^1\times 3^4\times 5^3\times 7^1\times {\mathrm{151}}^1$

素因数の和:187

約数の個数: 160

約数和(自身を含む): 68859648

約数和(自身を除く): 47455398

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, 81, 90, 105, 125, 126, 135, 150, 151, 162, 175, 189, 210, 225, 250, 270, 302, 315, 350, 375, 378, 405, 450, 453, 525, 567, 630, 675, 750, 755, 810, 875, 906, 945, 1050, 1057, 1125, 1134, 1350, 1359, 1510, 1575, 1750, 1890, 2025, 2114, 2250, 2265, 2625, 2718, 2835, 3150, 3171, 3375, 3775, 4050, 4077, 4530, 4725, 5250, 5285, 5670, 6342, 6750, 6795, 7550, 7875, 8154, 9450, 9513, 10125, 10570, 11325, 12231, 13590, 14175, 15750, 15855, 18875, 19026, 20250, 20385, 22650, 23625, 24462, 26425, 28350, 28539, 31710, 33975, 37750, 40770, 47250, 47565, 52850, 56625, 57078, 61155, 67950, 70875, 79275, 85617, 95130, 101925, 113250, 122310, 132125, 141750, 142695, 158550, 169875, 171234, 203850, 237825, 264250, 285390, 305775, 339750, 396375, 428085, 475650, 509625, 611550, 713475, 792750, 856170, 1019250, 1189125, 1426950, 1528875, 2140425, 2378250, 3057750, 3567375, 4280850, 7134750, 10702125, 21404250]

約数ペア:

[(1, 21404250), (2, 10702125), (3, 7134750), (5, 4280850), (6, 3567375), (7, 3057750), (9, 2378250), (10, 2140425), (14, 1528875), (15, 1426950), (18, 1189125), (21, 1019250), (25, 856170), (27, 792750), (30, 713475), (35, 611550), (42, 509625), (45, 475650), (50, 428085), (54, 396375), (63, 339750), (70, 305775), (75, 285390), (81, 264250), (90, 237825), (105, 203850), (125, 171234), (126, 169875), (135, 158550), (150, 142695), (151, 141750), (162, 132125), (175, 122310), (189, 113250), (210, 101925), (225, 95130), (250, 85617), (270, 79275), (302, 70875), (315, 67950), (350, 61155), (375, 57078), (378, 56625), (405, 52850), (450, 47565), (453, 47250), (525, 40770), (567, 37750), (630, 33975), (675, 31710), (750, 28539), (755, 28350), (810, 26425), (875, 24462), (906, 23625), (945, 22650), (1050, 20385), (1057, 20250), (1125, 19026), (1134, 18875), (1350, 15855), (1359, 15750), (1510, 14175), (1575, 13590), (1750, 12231), (1890, 11325), (2025, 10570), (2114, 10125), (2250, 9513), (2265, 9450), (2625, 8154), (2718, 7875), (2835, 7550), (3150, 6795), (3171, 6750), (3375, 6342), (3775, 5670), (4050, 5285), (4077, 5250), (4530, 4725)]