21000497000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{81083}}^1$

素因数の和:81148

約数の個数: 128

約数和(自身を含む): 57679914240

約数和(自身を除く): 36679417240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 37, 40, 50, 56, 70, 74, 100, 125, 140, 148, 175, 185, 200, 250, 259, 280, 296, 350, 370, 500, 518, 700, 740, 875, 925, 1000, 1036, 1295, 1400, 1480, 1750, 1850, 2072, 2590, 3500, 3700, 4625, 5180, 6475, 7000, 7400, 9250, 10360, 12950, 18500, 25900, 32375, 37000, 51800, 64750, 81083, 129500, 162166, 259000, 324332, 405415, 567581, 648664, 810830, 1135162, 1621660, 2027075, 2270324, 2837905, 3000071, 3243320, 4054150, 4540648, 5675810, 6000142, 8108300, 10135375, 11351620, 12000284, 14189525, 15000355, 16216600, 20270750, 21000497, 22703240, 24000568, 28379050, 30000710, 40541500, 42000994, 56758100, 60001420, 70947625, 75001775, 81083000, 84001988, 105002485, 113516200, 120002840, 141895250, 150003550, 168003976, 210004970, 283790500, 300007100, 375008875, 420009940, 525012425, 567581000, 600014200, 750017750, 840019880, 1050024850, 1500035500, 2100049700, 2625062125, 3000071000, 4200099400, 5250124250, 10500248500, 21000497000]

約数ペア:

[(1, 21000497000), (2, 10500248500), (4, 5250124250), (5, 4200099400), (7, 3000071000), (8, 2625062125), (10, 2100049700), (14, 1500035500), (20, 1050024850), (25, 840019880), (28, 750017750), (35, 600014200), (37, 567581000), (40, 525012425), (50, 420009940), (56, 375008875), (70, 300007100), (74, 283790500), (100, 210004970), (125, 168003976), (140, 150003550), (148, 141895250), (175, 120002840), (185, 113516200), (200, 105002485), (250, 84001988), (259, 81083000), (280, 75001775), (296, 70947625), (350, 60001420), (370, 56758100), (500, 42000994), (518, 40541500), (700, 30000710), (740, 28379050), (875, 24000568), (925, 22703240), (1000, 21000497), (1036, 20270750), (1295, 16216600), (1400, 15000355), (1480, 14189525), (1750, 12000284), (1850, 11351620), (2072, 10135375), (2590, 8108300), (3500, 6000142), (3700, 5675810), (4625, 4540648), (5180, 4054150), (6475, 3243320), (7000, 3000071), (7400, 2837905), (9250, 2270324), (10360, 2027075), (12950, 1621660), (18500, 1135162), (25900, 810830), (32375, 648664), (37000, 567581), (51800, 405415), (64750, 324332), (81083, 259000), (129500, 162166)]