20693456

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2531}}^1$

素因数の和:2619

約数の個数: 40

約数和(自身を含む): 46467264

約数和(自身を除く): 25773808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2531, 4088, 5062, 8176, 10124, 17717, 20248, 35434, 40496, 70868, 141736, 184763, 283472, 369526, 739052, 1293341, 1478104, 2586682, 2956208, 5173364, 10346728, 20693456]

約数ペア:

[(1, 20693456), (2, 10346728), (4, 5173364), (7, 2956208), (8, 2586682), (14, 1478104), (16, 1293341), (28, 739052), (56, 369526), (73, 283472), (112, 184763), (146, 141736), (292, 70868), (511, 40496), (584, 35434), (1022, 20248), (1168, 17717), (2044, 10124), (2531, 8176), (4088, 5062)]