21468140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 47101152

約数和(自身を除く): 25633012

約数列:

[1, 2, 4, 5, 10, 20, 37, 67, 74, 134, 148, 185, 268, 335, 370, 433, 670, 740, 866, 1340, 1732, 2165, 2479, 4330, 4958, 8660, 9916, 12395, 16021, 24790, 29011, 32042, 49580, 58022, 64084, 80105, 116044, 145055, 160210, 290110, 320420, 580220, 1073407, 2146814, 4293628, 5367035, 10734070, 21468140]

約数ペア:

[(1, 21468140), (2, 10734070), (4, 5367035), (5, 4293628), (10, 2146814), (20, 1073407), (37, 580220), (67, 320420), (74, 290110), (134, 160210), (148, 145055), (185, 116044), (268, 80105), (335, 64084), (370, 58022), (433, 49580), (670, 32042), (740, 29011), (866, 24790), (1340, 16021), (1732, 12395), (2165, 9916), (2479, 8660), (4330, 4958)]