19891648

素因数分解:

$2^6\times 7^2\times {\mathrm{6343}}^1$

素因数の和:6369

約数の個数: 42

約数和(自身を含む): 45924216

約数和(自身を除く): 26032568

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6343, 12686, 25372, 44401, 50744, 88802, 101488, 177604, 202976, 310807, 355208, 405952, 621614, 710416, 1243228, 1420832, 2486456, 2841664, 4972912, 9945824, 19891648]

約数ペア:

[(1, 19891648), (2, 9945824), (4, 4972912), (7, 2841664), (8, 2486456), (14, 1420832), (16, 1243228), (28, 710416), (32, 621614), (49, 405952), (56, 355208), (64, 310807), (98, 202976), (112, 177604), (196, 101488), (224, 88802), (392, 50744), (448, 44401), (784, 25372), (1568, 12686), (3136, 6343)]