21421021000

素因数分解:

$2^3\times 5^3\times {\mathrm{4157}}^1\times {\mathrm{5153}}^1$

素因数の和:9331

約数の個数: 64

約数和(自身を含む): 50146976880

約数和(自身を除く): 28725955880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 4157, 5153, 8314, 10306, 16628, 20612, 20785, 25765, 33256, 41224, 41570, 51530, 83140, 103060, 103925, 128825, 166280, 206120, 207850, 257650, 415700, 515300, 519625, 644125, 831400, 1030600, 1039250, 1288250, 2078500, 2576500, 4157000, 5153000, 21421021, 42842042, 85684084, 107105105, 171368168, 214210210, 428420420, 535525525, 856840840, 1071051050, 2142102100, 2677627625, 4284204200, 5355255250, 10710510500, 21421021000]

約数ペア:

[(1, 21421021000), (2, 10710510500), (4, 5355255250), (5, 4284204200), (8, 2677627625), (10, 2142102100), (20, 1071051050), (25, 856840840), (40, 535525525), (50, 428420420), (100, 214210210), (125, 171368168), (200, 107105105), (250, 85684084), (500, 42842042), (1000, 21421021), (4157, 5153000), (5153, 4157000), (8314, 2576500), (10306, 2078500), (16628, 1288250), (20612, 1039250), (20785, 1030600), (25765, 831400), (33256, 644125), (41224, 519625), (41570, 515300), (51530, 415700), (83140, 257650), (103060, 207850), (103925, 206120), (128825, 166280)]