20698496

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1811

約数の個数: 64

約数和(自身を含む): 50779680

約数和(自身を除く): 30081184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1777, 2912, 3554, 5824, 7108, 11648, 12439, 14216, 23101, 24878, 28432, 46202, 49756, 56864, 92404, 99512, 113728, 161707, 184808, 199024, 227456, 323414, 369616, 398048, 646828, 739232, 796096, 1293656, 1478464, 1592192, 2587312, 2956928, 5174624, 10349248, 20698496]

約数ペア:

[(1, 20698496), (2, 10349248), (4, 5174624), (7, 2956928), (8, 2587312), (13, 1592192), (14, 1478464), (16, 1293656), (26, 796096), (28, 739232), (32, 646828), (52, 398048), (56, 369616), (64, 323414), (91, 227456), (104, 199024), (112, 184808), (128, 161707), (182, 113728), (208, 99512), (224, 92404), (364, 56864), (416, 49756), (448, 46202), (728, 28432), (832, 24878), (896, 23101), (1456, 14216), (1664, 12439), (1777, 11648), (2912, 7108), (3554, 5824)]