19814816

素因数分解:

$2^5\times 7^2\times {\mathrm{12637}}^1$

素因数の和:12661

約数の個数: 36

約数和(自身を含む): 45383058

約数和(自身を除く): 25568242

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 12637, 25274, 50548, 88459, 101096, 176918, 202192, 353836, 404384, 619213, 707672, 1238426, 1415344, 2476852, 2830688, 4953704, 9907408, 19814816]

約数ペア:

[(1, 19814816), (2, 9907408), (4, 4953704), (7, 2830688), (8, 2476852), (14, 1415344), (16, 1238426), (28, 707672), (32, 619213), (49, 404384), (56, 353836), (98, 202192), (112, 176918), (196, 101096), (224, 88459), (392, 50548), (784, 25274), (1568, 12637)]