21485900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{5807}}^1$

素因数の和:5858

約数の個数: 36

約数和(自身を含む): 47892768

約数和(自身を除く): 26406868

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 148, 185, 370, 740, 925, 1850, 3700, 5807, 11614, 23228, 29035, 58070, 116140, 145175, 214859, 290350, 429718, 580700, 859436, 1074295, 2148590, 4297180, 5371475, 10742950, 21485900]

約数ペア:

[(1, 21485900), (2, 10742950), (4, 5371475), (5, 4297180), (10, 2148590), (20, 1074295), (25, 859436), (37, 580700), (50, 429718), (74, 290350), (100, 214859), (148, 145175), (185, 116140), (370, 58070), (740, 29035), (925, 23228), (1850, 11614), (3700, 5807)]