19811456

素因数分解:

$2^7\times 7^1\times {\mathrm{22111}}^1$

素因数の和:22132

約数の個数: 32

約数和(自身を含む): 45108480

約数和(自身を除く): 25297024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 22111, 44222, 88444, 154777, 176888, 309554, 353776, 619108, 707552, 1238216, 1415104, 2476432, 2830208, 4952864, 9905728, 19811456]

約数ペア:

[(1, 19811456), (2, 9905728), (4, 4952864), (7, 2830208), (8, 2476432), (14, 1415104), (16, 1238216), (28, 707552), (32, 619108), (56, 353776), (64, 309554), (112, 176888), (128, 154777), (224, 88444), (448, 44222), (896, 22111)]