21399000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{1019}}^1$

素因数の和:1050

約数の個数: 128

約数和(自身を含む): 76377600

約数和(自身を除く): 54978600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 1000, 1019, 1050, 1400, 1500, 1750, 2038, 2100, 2625, 3000, 3057, 3500, 4076, 4200, 5095, 5250, 6114, 7000, 7133, 8152, 10190, 10500, 12228, 14266, 15285, 20380, 21000, 21399, 24456, 25475, 28532, 30570, 35665, 40760, 42798, 50950, 57064, 61140, 71330, 76425, 85596, 101900, 106995, 122280, 127375, 142660, 152850, 171192, 178325, 203800, 213990, 254750, 285320, 305700, 356650, 382125, 427980, 509500, 534975, 611400, 713300, 764250, 855960, 891625, 1019000, 1069950, 1426600, 1528500, 1783250, 2139900, 2674875, 3057000, 3566500, 4279800, 5349750, 7133000, 10699500, 21399000]

約数ペア:

[(1, 21399000), (2, 10699500), (3, 7133000), (4, 5349750), (5, 4279800), (6, 3566500), (7, 3057000), (8, 2674875), (10, 2139900), (12, 1783250), (14, 1528500), (15, 1426600), (20, 1069950), (21, 1019000), (24, 891625), (25, 855960), (28, 764250), (30, 713300), (35, 611400), (40, 534975), (42, 509500), (50, 427980), (56, 382125), (60, 356650), (70, 305700), (75, 285320), (84, 254750), (100, 213990), (105, 203800), (120, 178325), (125, 171192), (140, 152850), (150, 142660), (168, 127375), (175, 122280), (200, 106995), (210, 101900), (250, 85596), (280, 76425), (300, 71330), (350, 61140), (375, 57064), (420, 50950), (500, 42798), (525, 40760), (600, 35665), (700, 30570), (750, 28532), (840, 25475), (875, 24456), (1000, 21399), (1019, 21000), (1050, 20380), (1400, 15285), (1500, 14266), (1750, 12228), (2038, 10500), (2100, 10190), (2625, 8152), (3000, 7133), (3057, 7000), (3500, 6114), (4076, 5250), (4200, 5095)]