20393745

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 34636800

約数和(自身を除く): 14243055

約数列:

[1, 3, 5, 15, 19, 57, 95, 163, 285, 439, 489, 815, 1317, 2195, 2445, 3097, 6585, 8341, 9291, 15485, 25023, 41705, 46455, 71557, 125115, 214671, 357785, 1073355, 1359583, 4078749, 6797915, 20393745]

約数ペア:

[(1, 20393745), (3, 6797915), (5, 4078749), (15, 1359583), (19, 1073355), (57, 357785), (95, 214671), (163, 125115), (285, 71557), (439, 46455), (489, 41705), (815, 25023), (1317, 15485), (2195, 9291), (2445, 8341), (3097, 6585)]