21321000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 75928320

約数和(自身を除く): 54607320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 50, 60, 69, 72, 75, 90, 92, 100, 103, 115, 120, 125, 138, 150, 180, 184, 200, 206, 207, 225, 230, 250, 276, 300, 309, 345, 360, 375, 412, 414, 450, 460, 500, 515, 552, 575, 600, 618, 690, 750, 824, 828, 900, 920, 927, 1000, 1030, 1035, 1125, 1150, 1236, 1380, 1500, 1545, 1656, 1725, 1800, 1854, 2060, 2070, 2250, 2300, 2369, 2472, 2575, 2760, 2875, 3000, 3090, 3450, 3708, 4120, 4140, 4500, 4600, 4635, 4738, 5150, 5175, 5750, 6180, 6900, 7107, 7416, 7725, 8280, 8625, 9000, 9270, 9476, 10300, 10350, 11500, 11845, 12360, 12875, 13800, 14214, 15450, 17250, 18540, 18952, 20600, 20700, 21321, 23000, 23175, 23690, 25750, 25875, 28428, 30900, 34500, 35535, 37080, 38625, 41400, 42642, 46350, 47380, 51500, 51750, 56856, 59225, 61800, 69000, 71070, 77250, 85284, 92700, 94760, 103000, 103500, 106605, 115875, 118450, 142140, 154500, 170568, 177675, 185400, 207000, 213210, 231750, 236900, 284280, 296125, 309000, 355350, 426420, 463500, 473800, 533025, 592250, 710700, 852840, 888375, 927000, 1066050, 1184500, 1421400, 1776750, 2132100, 2369000, 2665125, 3553500, 4264200, 5330250, 7107000, 10660500, 21321000]

約数ペア:

[(1, 21321000), (2, 10660500), (3, 7107000), (4, 5330250), (5, 4264200), (6, 3553500), (8, 2665125), (9, 2369000), (10, 2132100), (12, 1776750), (15, 1421400), (18, 1184500), (20, 1066050), (23, 927000), (24, 888375), (25, 852840), (30, 710700), (36, 592250), (40, 533025), (45, 473800), (46, 463500), (50, 426420), (60, 355350), (69, 309000), (72, 296125), (75, 284280), (90, 236900), (92, 231750), (100, 213210), (103, 207000), (115, 185400), (120, 177675), (125, 170568), (138, 154500), (150, 142140), (180, 118450), (184, 115875), (200, 106605), (206, 103500), (207, 103000), (225, 94760), (230, 92700), (250, 85284), (276, 77250), (300, 71070), (309, 69000), (345, 61800), (360, 59225), (375, 56856), (412, 51750), (414, 51500), (450, 47380), (460, 46350), (500, 42642), (515, 41400), (552, 38625), (575, 37080), (600, 35535), (618, 34500), (690, 30900), (750, 28428), (824, 25875), (828, 25750), (900, 23690), (920, 23175), (927, 23000), (1000, 21321), (1030, 20700), (1035, 20600), (1125, 18952), (1150, 18540), (1236, 17250), (1380, 15450), (1500, 14214), (1545, 13800), (1656, 12875), (1725, 12360), (1800, 11845), (1854, 11500), (2060, 10350), (2070, 10300), (2250, 9476), (2300, 9270), (2369, 9000), (2472, 8625), (2575, 8280), (2760, 7725), (2875, 7416), (3000, 7107), (3090, 6900), (3450, 6180), (3708, 5750), (4120, 5175), (4140, 5150), (4500, 4738), (4600, 4635)]